690708682 has 4 divisors (see below), whose sum is σ = 1036063026. Its totient is φ = 345354340.

The previous prime is 690708659. The next prime is 690708703. The reversal of 690708682 is 286807096.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 418161601 + 272547081 = 20449^2 + 16509^2 .

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 as a sum of consecutive naturals, namely, 172677169 + ... + 172677172.

Almost surely, 2^690708682 is an apocalyptic number.

690708682 is a deficient number, since it is larger than the sum of its proper divisors (345354344).

690708682 is a wasteful number, since it uses less digits than its factorization.

690708682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345354343.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 690708682 is about 26281.3371425428. The cubic root of 690708682 is about 883.9580156893.

The spelling of 690708682 in words is "six hundred ninety million, seven hundred eight thousand, six hundred eighty-two".