3696431986 has 8 divisors (see below), whose sum is σ = 5971159404. Its totient is φ = 1706045520.

The previous prime is 3696431953. The next prime is 3696432001. The reversal of 3696431986 is 6891346963.

3696431986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2842915761 + 853516225 = 53319^2 + 29215^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71085205 + ... + 71085256.

Almost surely, 2^3696431986 is an apocalyptic number.

3696431986 is a deficient number, since it is larger than the sum of its proper divisors (2274727418).

3696431986 is a wasteful number, since it uses less digits than its factorization.

3696431986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142170476.

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

The square root of 3696431986 is about 60798.2893344870. The cubic root of 3696431986 is about 1546.1830447554.

The spelling of 3696431986 in words is "three billion, six hundred ninety-six million, four hundred thirty-one thousand, nine hundred eighty-six".