690433625 has 16 divisors (see below), whose sum is σ = 984756864. Its totient is φ = 473439600.

The previous prime is 690433621. The next prime is 690433633. The reversal of 690433625 is 526334096.

690433625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 690433625 - 2² = 690433621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690433621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393659 + ... + 395408.

It is an arithmetic number, because the mean of its divisors is an integer number (61547304).

Almost surely, 2^690433625 is an apocalyptic number.

It is an amenable number.

690433625 is a deficient number, since it is larger than the sum of its proper divisors (294323239).

690433625 is an equidigital number, since it uses as much as digits as its factorization.

690433625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789089 (or 789079 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 38.

The square root of 690433625 is about 26276.1036875713. The cubic root of 690433625 is about 883.8406622483.

The spelling of 690433625 in words is "six hundred ninety million, four hundred thirty-three thousand, six hundred twenty-five".