690204 has 24 divisors (see below), whose sum is σ = 1627920. Its totient is φ = 227584.

The previous prime is 690187. The next prime is 690233. The reversal of 690204 is 402096.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1102 + ... + 1610.

It is an arithmetic number, because the mean of its divisors is an integer number (67830).

2⁶⁹⁰²⁰⁴ is an apocalyptic number.

It is an amenable number.

690204 is an abundant number, since it is smaller than the sum of its proper divisors (937716).

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

690204 is a wasteful number, since it uses less digits than its factorization.

690204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 690204 is about 830.7851707872. The cubic root of 690204 is about 88.3742668558.

The spelling of 690204 in words is "six hundred ninety thousand, two hundred four".