686048572 has 48 divisors (see below), whose sum is σ = 1352381184. Its totient is φ = 301808000.

The previous prime is 686048557. The next prime is 686048603. The reversal of 686048572 is 275840686.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234873 + ... + 237775.

It is an arithmetic number, because the mean of its divisors is an integer number (28174608).

Almost surely, 2^686048572 is an apocalyptic number.

It is an amenable number.

686048572 is a deficient number, since it is larger than the sum of its proper divisors (666332612).

686048572 is a wasteful number, since it uses less digits than its factorization.

686048572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090 (or 3088 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 686048572 is about 26192.5289347936. The cubic root of 686048572 is about 881.9655497022.

The spelling of 686048572 in words is "six hundred eighty-six million, forty-eight thousand, five hundred seventy-two".