61023900 has 72 divisors (see below), whose sum is σ = 201792640. Its totient is φ = 13947840.

The previous prime is 61023887. The next prime is 61023913. The reversal of 61023900 is 932016.

61023900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61023887) and next prime (61023913).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 12430 + ... + 16629.

Almost surely, 2^61023900 is an apocalyptic number.

61023900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61023900 is an abundant number, since it is smaller than the sum of its proper divisors (140768740).

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

61023900 is a wasteful number, since it uses less digits than its factorization.

61023900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29083 (or 29076 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 61023900 is about 7811.7795667825. The cubic root of 61023900 is about 393.7011226808.

Adding to 61023900 its reverse (932016), we get a palindrome (61955916).

The spelling of 61023900 in words is "sixty-one million, twenty-three thousand, nine hundred".