682857387 has 12 divisors (see below), whose sum is σ = 987882480. Its totient is φ = 454530768.

The previous prime is 682857361. The next prime is 682857391. The reversal of 682857387 is 783758286.

682857387 is a `hidden beast` number, since 68 + 2 + 8 + 573 + 8 + 7 = 666.

It is not a de Polignac number, because 682857387 - 2¹² = 682853291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (682857317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52812 + ... + 64457.

It is an arithmetic number, because the mean of its divisors is an integer number (82323540).

Almost surely, 2^682857387 is an apocalyptic number.

682857387 is a deficient number, since it is larger than the sum of its proper divisors (305025093).

682857387 is a wasteful number, since it uses less digits than its factorization.

682857387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117922 (or 117919 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 682857387 is about 26131.5400809061. The cubic root of 682857387 is about 880.5959234070.

The spelling of 682857387 in words is "six hundred eighty-two million, eight hundred fifty-seven thousand, three hundred eighty-seven".