690980602 has 8 divisors (see below), whose sum is σ = 1116199476. Its totient is φ = 318914112.

The previous prime is 690980533. The next prime is 690980617. The reversal of 690980602 is 206089096.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 687016521 + 3964081 = 26211^2 + 1991^2 .

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13288063 + ... + 13288114.

Almost surely, 2^690980602 is an apocalyptic number.

690980602 is a deficient number, since it is larger than the sum of its proper divisors (425218874).

690980602 is a wasteful number, since it uses less digits than its factorization.

690980602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26576192.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 690980602 is about 26286.5098862515. The cubic root of 690980602 is about 884.0740001046.

The spelling of 690980602 in words is "six hundred ninety million, nine hundred eighty thousand, six hundred two".