857689416 has 24 divisors (see below), whose sum is σ = 2322909030. Its totient is φ = 285896448.

The previous prime is 857689411. The next prime is 857689433. The reversal of 857689416 is 614986758.

857689416 is a `hidden beast` number, since 85 + 76 + 89 + 416 = 666.

857689416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 564252516 + 293436900 = 23754^2 + 17130^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×857689416² = 1471262268636842112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (857689411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5956105 + ... + 5956248.

Almost surely, 2^857689416 is an apocalyptic number.

It is an amenable number.

857689416 is an abundant number, since it is smaller than the sum of its proper divisors (1465219614).

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

857689416 is a wasteful number, since it uses less digits than its factorization.

857689416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11912365 (or 11912358 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 857689416 is about 29286.3349704261. The cubic root of 857689416 is about 950.1161136006.

The spelling of 857689416 in words is "eight hundred fifty-seven million, six hundred eighty-nine thousand, four hundred sixteen".