690382072 has 8 divisors (see below), whose sum is σ = 1294466400. Its totient is φ = 345191032.

The previous prime is 690382031. The next prime is 690382073. The reversal of 690382072 is 270283096.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690382073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43148872 + ... + 43148887.

It is an arithmetic number, because the mean of its divisors is an integer number (161808300).

Almost surely, 2^690382072 is an apocalyptic number.

It is an amenable number.

690382072 is a deficient number, since it is larger than the sum of its proper divisors (604084328).

690382072 is a wasteful number, since it uses less digits than its factorization.

690382072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86297765 (or 86297761 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 690382072 is about 26275.1226828725. The cubic root of 690382072 is about 883.8186636230.

The spelling of 690382072 in words is "six hundred ninety million, three hundred eighty-two thousand, seventy-two".