3699638164 has 12 divisors (see below), whose sum is σ = 6480109300. Its totient is φ = 1848178368.

The previous prime is 3699638161. The next prime is 3699638183. The reversal of 3699638164 is 4618369963.

It can be written as a sum of positive squares in 2 ways, for example, as 2089221264 + 1610416900 = 45708^2 + 40130^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3699638161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405099 + ... + 414130.

Almost surely, 2^3699638164 is an apocalyptic number.

It is an amenable number.

3699638164 is a deficient number, since it is larger than the sum of its proper divisors (2780471136).

3699638164 is a wasteful number, since it uses less digits than its factorization.

3699638164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820362 (or 820360 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 55.

The square root of 3699638164 is about 60824.6509566639. The cubic root of 3699638164 is about 1546.6299536924.

The spelling of 3699638164 in words is "three billion, six hundred ninety-nine million, six hundred thirty-eight thousand, one hundred sixty-four".