690690804 has 24 divisors (see below), whose sum is σ = 1625877120. Its totient is φ = 228192384.

The previous prime is 690690799. The next prime is 690690839. The reversal of 690690804 is 408096096.

690690804 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 7 ways as a sum of consecutive naturals, for example, 253324 + ... + 256035.

It is an arithmetic number, because the mean of its divisors is an integer number (67744880).

Almost surely, 2^690690804 is an apocalyptic number.

It is an amenable number.

690690804 is an abundant number, since it is smaller than the sum of its proper divisors (935186316).

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

690690804 is a wasteful number, since it uses less digits than its factorization.

690690804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509479 (or 509477 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 690690804 is about 26280.9970130511. The cubic root of 690690804 is about 883.9503889632.

The spelling of 690690804 in words is "six hundred ninety million, six hundred ninety thousand, eight hundred four".