617164856 has 48 divisors (see below), whose sum is σ = 1453668720. Its totient is φ = 240451200.

The previous prime is 617164813. The next prime is 617164901. The reversal of 617164856 is 658461716.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38765 + ... + 52316.

It is an arithmetic number, because the mean of its divisors is an integer number (30284765).

Almost surely, 2^617164856 is an apocalyptic number.

It is an amenable number.

617164856 is an abundant number, since it is smaller than the sum of its proper divisors (836503864).

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

617164856 is a wasteful number, since it uses less digits than its factorization.

617164856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91116 (or 91101 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 617164856 is about 24842.8029014441. The cubic root of 617164856 is about 851.4001633627.

The spelling of 617164856 in words is "six hundred seventeen million, one hundred sixty-four thousand, eight hundred fifty-six".