3939736064 has 40 divisors (see below), whose sum is σ = 8587405728. Its totient is φ = 1790786560.

The previous prime is 3939736063. The next prime is 3939736133. The reversal of 3939736064 is 4606379393.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3939736063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344132 + ... + 355395.

Almost surely, 2^3939736064 is an apocalyptic number.

It is an amenable number.

3939736064 is an abundant number, since it is smaller than the sum of its proper divisors (4647669664).

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

3939736064 is an equidigital number, since it uses as much as digits as its factorization.

3939736064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699556 (or 699540 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 50.

The square root of 3939736064 is about 62767.3168456323. The cubic root of 3939736064 is about 1579.3887589182.

The spelling of 3939736064 in words is "three billion, nine hundred thirty-nine million, seven hundred thirty-six thousand, sixty-four".