690632136 has 64 divisors (see below), whose sum is σ = 1980326400. Its totient is φ = 222782400.

The previous prime is 690632119. The next prime is 690632149. The reversal of 690632136 is 631236096.

690632136 is a `hidden beast` number, since 6 + 9 + 0 + 632 + 13 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 690632136.

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 15 ways as a sum of consecutive naturals, for example, 44875 + ... + 58266.

It is an arithmetic number, because the mean of its divisors is an integer number (30942600).

Almost surely, 2^690632136 is an apocalyptic number.

It is an amenable number.

690632136 is an abundant number, since it is smaller than the sum of its proper divisors (1289694264).

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

690632136 is a wasteful number, since it uses less digits than its factorization.

690632136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103187 (or 103177 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 690632136 is about 26279.8808216476. The cubic root of 690632136 is about 883.9253603640.

The spelling of 690632136 in words is "six hundred ninety million, six hundred thirty-two thousand, one hundred thirty-six".