690934464 has 84 divisors (see below), whose sum is σ = 2160498600. Its totient is φ = 209372160.

The previous prime is 690934459. The next prime is 690934469. The reversal of 690934464 is 464439096.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (690934459) and next prime (690934469).

It is not an unprimeable number, because it can be changed into a prime (690934469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48189 + ... + 60860.

Almost surely, 2^690934464 is an apocalyptic number.

690934464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

690934464 is an abundant number, since it is smaller than the sum of its proper divisors (1469564136).

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

690934464 is a wasteful number, since it uses less digits than its factorization.

690934464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109078 (or 109065 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 690934464 is about 26285.6322731640. The cubic root of 690934464 is about 884.0543226038.

The spelling of 690934464 in words is "six hundred ninety million, nine hundred thirty-four thousand, four hundred sixty-four".