690531682 has 8 divisors (see below), whose sum is σ = 1040707152. Its totient is φ = 343629300.

The previous prime is 690531679. The next prime is 690531707. The reversal of 690531682 is 286135096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817744 + ... + 818587.

It is an arithmetic number, because the mean of its divisors is an integer number (130088394).

Almost surely, 2^690531682 is an apocalyptic number.

690531682 is a deficient number, since it is larger than the sum of its proper divisors (350175470).

690531682 is a wasteful number, since it uses less digits than its factorization.

690531682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636544.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 690531682 is about 26277.9695182105. The cubic root of 690531682 is about 883.8825019744.

The spelling of 690531682 in words is "six hundred ninety million, five hundred thirty-one thousand, six hundred eighty-two".