61023960 has 96 divisors (see below), whose sum is σ = 199311840. Its totient is φ = 16192512.

The previous prime is 61023959. The next prime is 61023979. The reversal of 61023960 is 6932016.

It is a happy number.

61023960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121069 + ... + 121571.

It is an arithmetic number, because the mean of its divisors is an integer number (2076165).

Almost surely, 2^61023960 is an apocalyptic number.

61023960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61023960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99655920).

61023960 is an abundant number, since it is smaller than the sum of its proper divisors (138287880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61023960 is a wasteful number, since it uses less digits than its factorization.

61023960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 61023960 is about 7811.7834071357. The cubic root of 61023960 is about 393.7012517125.

Subtracting from 61023960 its product of nonzero digits (1944), we obtain a palindrome (61022016).

Adding to 61023960 its reverse (6932016), we get a palindrome (67955976).

The spelling of 61023960 in words is "sixty-one million, twenty-three thousand, nine hundred sixty".