689575072 has 12 divisors (see below), whose sum is σ = 1357600986. Its totient is φ = 344787520.

The previous prime is 689575043. The next prime is 689575087. The reversal of 689575072 is 270575986.

It can be written as a sum of positive squares in only one way, i.e., 370023696 + 319551376 = 19236^2 + 17876^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10774579 + ... + 10774642.

Almost surely, 2^689575072 is an apocalyptic number.

It is an amenable number.

689575072 is a deficient number, since it is larger than the sum of its proper divisors (668025914).

689575072 is a wasteful number, since it uses less digits than its factorization.

689575072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21549231 (or 21549223 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 49.

The square root of 689575072 is about 26259.7614612167. The cubic root of 689575072 is about 883.4741588538.

The spelling of 689575072 in words is "six hundred eighty-nine million, five hundred seventy-five thousand, seventy-two".