690352 has 20 divisors (see below), whose sum is σ = 1440880. Its totient is φ = 318528.

The previous prime is 690341. The next prime is 690367. The reversal of 690352 is 253096.

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 3 ways as a sum of consecutive naturals, for example, 1452 + ... + 1867.

It is an arithmetic number, because the mean of its divisors is an integer number (72044).

2⁶⁹⁰³⁵² is an apocalyptic number.

It is an amenable number.

690352 is an abundant number, since it is smaller than the sum of its proper divisors (750528).

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

690352 is a wasteful number, since it uses less digits than its factorization.

690352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340 (or 3334 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 690352 is about 830.8742383779. The cubic root of 690352 is about 88.3805830835.

The spelling of 690352 in words is "six hundred ninety thousand, three hundred fifty-two".