686470023 has 6 divisors (see below), whose sum is σ = 991567824. Its totient is φ = 457646676.

The previous prime is 686469997. The next prime is 686470039. The reversal of 686470023 is 320074686.

686470023 is a `hidden beast` number, since 6 + 8 + 647 + 0 + 0 + 2 + 3 = 666.

It is not a de Polignac number, because 686470023 - 2⁸ = 686469767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 686470023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686470063) 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, 38137215 + ... + 38137232.

It is an arithmetic number, because the mean of its divisors is an integer number (165261304).

Almost surely, 2^686470023 is an apocalyptic number.

686470023 is a deficient number, since it is larger than the sum of its proper divisors (305097801).

686470023 is a wasteful number, since it uses less digits than its factorization.

686470023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76274453 (or 76274450 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 686470023 is about 26200.5729517505. The cubic root of 686470023 is about 882.1461147473.

The spelling of 686470023 in words is "six hundred eighty-six million, four hundred seventy thousand, twenty-three".