690632 has 16 divisors (see below), whose sum is σ = 1306800. Its totient is φ = 342160.

The previous prime is 690629. The next prime is 690661. The reversal of 690632 is 236096.

It is a nialpdrome in base 15.

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, 719 + ... + 1377.

It is an arithmetic number, because the mean of its divisors is an integer number (81675).

2⁶⁹⁰⁶³² is an apocalyptic number.

It is an amenable number.

690632 is a deficient number, since it is larger than the sum of its proper divisors (616168).

690632 is a wasteful number, since it uses less digits than its factorization.

690632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 690632 is about 831.0427185169. The cubic root of 690632 is about 88.3925302343.

The spelling of 690632 in words is "six hundred ninety thousand, six hundred thirty-two".