3931012436 has 12 divisors (see below), whose sum is σ = 7408446612. Its totient is φ = 1814313408.

The previous prime is 3931012433. The next prime is 3931012457. The reversal of 3931012436 is 6342101393.

It can be written as a sum of positive squares in 2 ways, for example, as 1545276100 + 2385736336 = 39310^2 + 48844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3931012433) 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, 37798145 + ... + 37798248.

It is an arithmetic number, because the mean of its divisors is an integer number (617370551).

Almost surely, 2^3931012436 is an apocalyptic number.

It is an amenable number.

3931012436 is a deficient number, since it is larger than the sum of its proper divisors (3477434176).

3931012436 is a wasteful number, since it uses less digits than its factorization.

3931012436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75596410 (or 75596408 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3931012436 is about 62697.7865319024. The cubic root of 3931012436 is about 1578.2221679169. Note that the first 3 decimals are identical.

The spelling of 3931012436 in words is "three billion, nine hundred thirty-one million, twelve thousand, four hundred thirty-six".