61008930 has 128 divisors (see below), whose sum is σ = 173352960. Its totient is φ = 15240960.

The previous prime is 61008929. The next prime is 61009031. The reversal of 61008930 is 3980016.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 61008894 and 61008903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 309592 + ... + 309788.

It is an arithmetic number, because the mean of its divisors is an integer number (1354320).

Almost surely, 2^61008930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61008930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86676480).

61008930 is an abundant number, since it is smaller than the sum of its proper divisors (112344030).

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

61008930 is a wasteful number, since it uses less digits than its factorization.

61008930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 61008930 is about 7810.8213396544. The cubic root of 61008930 is about 393.6689266187.

Adding to 61008930 its reverse (3980016), we get a palindrome (64988946).

The spelling of 61008930 in words is "sixty-one million, eight thousand, nine hundred thirty".