3900729712 has 80 divisors (see below), whose sum is σ = 8631090432. Its totient is φ = 1690472960.

The previous prime is 3900729683. The next prime is 3900729731. The reversal of 3900729712 is 2179270093.

It is a congruent 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, 1403268 + ... + 1406044.

Almost surely, 2^3900729712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3900729712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4315545216).

3900729712 is an abundant number, since it is smaller than the sum of its proper divisors (4730360720).

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

3900729712 is a wasteful number, since it uses less digits than its factorization.

3900729712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166 (or 3160 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 3900729712 is about 62455.8220824928. The cubic root of 3900729712 is about 1574.1590824015.

The spelling of 3900729712 in words is "three billion, nine hundred million, seven hundred twenty-nine thousand, seven hundred twelve".