3925729079 has 12 divisors (see below), whose sum is σ = 4167105456. Its totient is φ = 3691325088.

The previous prime is 3925729069. The next prime is 3925729081. The reversal of 3925729079 is 9709275293.

It is a happy number.

It is not a de Polignac number, because 3925729079 - 2²⁴ = 3908951863 is a prime.

It is a super-2 number, since 2×3925729079² = 30822697603412376482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3925729079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3925729009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55547 + ... + 104579.

It is an arithmetic number, because the mean of its divisors is an integer number (347258788).

Almost surely, 2^3925729079 is an apocalyptic number.

3925729079 is a deficient number, since it is larger than the sum of its proper divisors (241376377).

3925729079 is an equidigital number, since it uses as much as digits as its factorization.

3925729079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49174 (or 49115 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 53.

The square root of 3925729079 is about 62655.6388444009. The cubic root of 3925729079 is about 1577.5147971752.

The spelling of 3925729079 in words is "three billion, nine hundred twenty-five million, seven hundred twenty-nine thousand, seventy-nine".