3979533815 has 8 divisors (see below), whose sum is σ = 4775814000. Its totient is φ = 3183378112.

The previous prime is 3979533797. The next prime is 3979533821. The reversal of 3979533815 is 5183359793.

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

It is a cyclic number.

It is not a de Polignac number, because 3979533815 - 2²⁶ = 3912424951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67811 + ... + 112059.

It is an arithmetic number, because the mean of its divisors is an integer number (596976750).

Almost surely, 2^3979533815 is an apocalyptic number.

3979533815 is a deficient number, since it is larger than the sum of its proper divisors (796280185).

3979533815 is a wasteful number, since it uses less digits than its factorization.

3979533815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62241.

The product of its digits is 3061800, while the sum is 53.

The square root of 3979533815 is about 63083.5463096361. The cubic root of 3979533815 is about 1584.6890844267.

The spelling of 3979533815 in words is "three billion, nine hundred seventy-nine million, five hundred thirty-three thousand, eight hundred fifteen".