857679948 has 24 divisors (see below), whose sum is σ = 2223614960. Its totient is φ = 285893280.

The previous prime is 857679899. The next prime is 857679983. The reversal of 857679948 is 849976758.

It is a super-2 number, since 2×857679948² = 1471229786402565408, which contains 22 as substring.

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, 3970633 + ... + 3970848.

Almost surely, 2^857679948 is an apocalyptic number.

It is an amenable number.

857679948 is an abundant number, since it is smaller than the sum of its proper divisors (1365935012).

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

857679948 is a wasteful number, since it uses less digits than its factorization.

857679948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941494 (or 7941486 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The square root of 857679948 is about 29286.1733246254. The cubic root of 857679948 is about 950.1126174895.

The spelling of 857679948 in words is "eight hundred fifty-seven million, six hundred seventy-nine thousand, nine hundred forty-eight".