857572923 has 8 divisors (see below), whose sum is σ = 1203611200. Its totient is φ = 541624968.

The previous prime is 857572907. The next prime is 857572957. The reversal of 857572923 is 329275758.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 857572923 - 2⁴ = 857572907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (857582923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7522513 + ... + 7522626.

It is an arithmetic number, because the mean of its divisors is an integer number (150451400).

Almost surely, 2^857572923 is an apocalyptic number.

857572923 is a deficient number, since it is larger than the sum of its proper divisors (346038277).

857572923 is a wasteful number, since it uses less digits than its factorization.

857572923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15045161.

The product of its digits is 1058400, while the sum is 48.

The square root of 857572923 is about 29284.3460401628. The cubic root of 857572923 is about 950.0730961300.

The spelling of 857572923 in words is "eight hundred fifty-seven million, five hundred seventy-two thousand, nine hundred twenty-three".