690572 has 6 divisors (see below), whose sum is σ = 1208508. Its totient is φ = 345284.

The previous prime is 690553. The next prime is 690583. The reversal of 690572 is 275096.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86318 + ... + 86325.

It is an arithmetic number, because the mean of its divisors is an integer number (201418).

2⁶⁹⁰⁵⁷² is an apocalyptic number.

It is an amenable number.

690572 is a deficient number, since it is larger than the sum of its proper divisors (517936).

690572 is a wasteful number, since it uses less digits than its factorization.

690572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172647 (or 172645 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 690572 is about 831.0066185055. The cubic root of 690572 is about 88.3899704024.

The spelling of 690572 in words is "six hundred ninety thousand, five hundred seventy-two".