857372952 has 32 divisors (see below), whose sum is σ = 2212577280. Its totient is φ = 276571680.

The previous prime is 857372933. The next prime is 857372977. The reversal of 857372952 is 259273758.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575448 + ... + 576935.

It is an arithmetic number, because the mean of its divisors is an integer number (69143040).

Almost surely, 2^857372952 is an apocalyptic number.

It is an amenable number.

857372952 is an abundant number, since it is smaller than the sum of its proper divisors (1355204328).

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

857372952 is a wasteful number, since it uses less digits than its factorization.

857372952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152423 (or 1152419 counting only the distinct ones).

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

The square root of 857372952 is about 29280.9315425585. The cubic root of 857372952 is about 949.9992435820. Note that the first 3 decimals are identical.

The spelling of 857372952 in words is "eight hundred fifty-seven million, three hundred seventy-two thousand, nine hundred fifty-two".