655917038 has 24 divisors (see below), whose sum is σ = 1148241744. Its totient is φ = 280190400.

The previous prime is 655917023. The next prime is 655917043. The reversal of 655917038 is 830719556.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 655917038.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19718 + ... + 41238.

It is an arithmetic number, because the mean of its divisors is an integer number (47843406).

Almost surely, 2^655917038 is an apocalyptic number.

655917038 is a deficient number, since it is larger than the sum of its proper divisors (492324706).

655917038 is a wasteful number, since it uses less digits than its factorization.

655917038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21848 (or 21841 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 655917038 is about 25610.8773375689. The cubic root of 655917038 is about 868.8596668623.

The spelling of 655917038 in words is "six hundred fifty-five million, nine hundred seventeen thousand, thirty-eight".