3979816612 has 6 divisors (see below), whose sum is σ = 6964679078. Its totient is φ = 1989908304.

The previous prime is 3979816583. The next prime is 3979816663. The reversal of 3979816612 is 2166189793.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3516964416 + 462852196 = 59304^2 + 21514^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3979816612.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497477073 + ... + 497477080.

Almost surely, 2^3979816612 is an apocalyptic number.

It is an amenable number.

3979816612 is a deficient number, since it is larger than the sum of its proper divisors (2984862466).

3979816612 is a wasteful number, since it uses less digits than its factorization.

3979816612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994954157 (or 994954155 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 3979816612 is about 63085.7877179956. The cubic root of 3979816612 is about 1584.7266210432.

The spelling of 3979816612 in words is "three billion, nine hundred seventy-nine million, eight hundred sixteen thousand, six hundred twelve".