857622484 has 12 divisors (see below), whose sum is σ = 1501483284. Its totient is φ = 428627264.

The previous prime is 857622463. The next prime is 857622503. The reversal of 857622484 is 484226758.

It can be written as a sum of positive squares in 2 ways, for example, as 450712900 + 406909584 = 21230^2 + 20172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35227 + ... + 54370.

It is an arithmetic number, because the mean of its divisors is an integer number (125123607).

Almost surely, 2^857622484 is an apocalyptic number.

It is an amenable number.

857622484 is a deficient number, since it is larger than the sum of its proper divisors (643860800).

857622484 is a wasteful number, since it uses less digits than its factorization.

857622484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91994 (or 91992 counting only the distinct ones).

The product of its digits is 860160, while the sum is 46.

The square root of 857622484 is about 29285.1922308869. The cubic root of 857622484 is about 950.0913980393.

The spelling of 857622484 in words is "eight hundred fifty-seven million, six hundred twenty-two thousand, four hundred eighty-four".