685272592 has 20 divisors (see below), whose sum is σ = 1328126800. Its totient is φ = 342530208.

The previous prime is 685272589. The next prime is 685272607. The reversal of 685272592 is 295272586.

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, 85159 + ... + 92857.

It is an arithmetic number, because the mean of its divisors is an integer number (66406340).

Almost surely, 2^685272592 is an apocalyptic number.

It is an amenable number.

685272592 is a deficient number, since it is larger than the sum of its proper divisors (642854208).

685272592 is a wasteful number, since it uses less digits than its factorization.

685272592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13270 (or 13264 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 685272592 is about 26177.7117410976. The cubic root of 685272592 is about 881.6328979284.

The spelling of 685272592 in words is "six hundred eighty-five million, two hundred seventy-two thousand, five hundred ninety-two".