690726264 has 16 divisors (see below), whose sum is σ = 1726815720. Its totient is φ = 230242080.

The previous prime is 690726251. The next prime is 690726287. The reversal of 690726264 is 462627096.

It is a happy number.

690726264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 14390107 + ... + 14390154.

Almost surely, 2^690726264 is an apocalyptic number.

It is an amenable number.

690726264 is an abundant number, since it is smaller than the sum of its proper divisors (1036089456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690726264 is a wasteful number, since it uses less digits than its factorization.

690726264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28780270 (or 28780266 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 690726264 is about 26281.6716363324. The cubic root of 690726264 is about 883.9655160139.

The spelling of 690726264 in words is "six hundred ninety million, seven hundred twenty-six thousand, two hundred sixty-four".