3929999136 has 72 divisors (see below), whose sum is σ = 12000547440. Its totient is φ = 1122855552.

The previous prime is 3929999113. The next prime is 3929999149. The reversal of 3929999136 is 6319999293.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3929999136.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413026 + ... + 422433.

It is an arithmetic number, because the mean of its divisors is an integer number (166674270).

Almost surely, 2^3929999136 is an apocalyptic number.

It is an amenable number.

3929999136 is an abundant number, since it is smaller than the sum of its proper divisors (8070548304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3929999136 is a wasteful number, since it uses less digits than its factorization.

3929999136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835486 (or 835471 counting only the distinct ones).

The product of its digits is 6377292, while the sum is 60.

The square root of 3929999136 is about 62689.7051835467. The cubic root of 3929999136 is about 1578.0865497627.

The spelling of 3929999136 in words is "three billion, nine hundred twenty-nine million, nine hundred ninety-nine thousand, one hundred thirty-six".