3949647115 has 16 divisors (see below), whose sum is σ = 4906747008. Its totient is φ = 3050113536.

The previous prime is 3949647109. The next prime is 3949647133. The reversal of 3949647115 is 5117469493.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3949647115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97962 + ... + 132271.

It is an arithmetic number, because the mean of its divisors is an integer number (306671688).

Almost surely, 2^3949647115 is an apocalyptic number.

3949647115 is a deficient number, since it is larger than the sum of its proper divisors (957099893).

3949647115 is a wasteful number, since it uses less digits than its factorization.

3949647115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230358.

The product of its digits is 816480, while the sum is 49.

The square root of 3949647115 is about 62846.2179848557. The cubic root of 3949647115 is about 1580.7120535388.

The spelling of 3949647115 in words is "three billion, nine hundred forty-nine million, six hundred forty-seven thousand, one hundred fifteen".