690256704 has 28 divisors (see below), whose sum is σ = 1826304704. Its totient is φ = 230085504.

The previous prime is 690256691. The next prime is 690256717. The reversal of 690256704 is 407652096.

It is an interprime number because it is at equal distance from previous prime (690256691) and next prime (690256717).

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, 1797352 + ... + 1797735.

It is an arithmetic number, because the mean of its divisors is an integer number (65225168).

Almost surely, 2^690256704 is an apocalyptic number.

690256704 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

690256704 is an abundant number, since it is smaller than the sum of its proper divisors (1136048000).

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

690256704 is a wasteful number, since it uses less digits than its factorization.

690256704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595102 (or 3595092 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 690256704 is about 26272.7368958774. The cubic root of 690256704 is about 883.7651621923.

The spelling of 690256704 in words is "six hundred ninety million, two hundred fifty-six thousand, seven hundred four".