857989262 has 16 divisors (see below), whose sum is σ = 1392044640. Its totient is φ = 394263072.

The previous prime is 857989229. The next prime is 857989283. The reversal of 857989262 is 262989758.

It is a super-2 number, since 2×857989262² = 1472291147414609288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 857989198 and 857989207.

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, 66098 + ... + 78005.

It is an arithmetic number, because the mean of its divisors is an integer number (87002790).

Almost surely, 2^857989262 is an apocalyptic number.

857989262 is a deficient number, since it is larger than the sum of its proper divisors (534055378).

857989262 is a wasteful number, since it uses less digits than its factorization.

857989262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144347.

The product of its digits is 4354560, while the sum is 56.

The square root of 857989262 is about 29291.4537365423. The cubic root of 857989262 is about 950.2268200788.

The spelling of 857989262 in words is "eight hundred fifty-seven million, nine hundred eighty-nine thousand, two hundred sixty-two".