3921590612 has 6 divisors (see below), whose sum is σ = 6862783578. Its totient is φ = 1960795304.

The previous prime is 3921590609. The next prime is 3921590657. The reversal of 3921590612 is 2160951293.

It can be written as a sum of positive squares in only one way, i.e., 2189865616 + 1731724996 = 46796^2 + 41614^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490198823 + ... + 490198830.

It is an arithmetic number, because the mean of its divisors is an integer number (1143797263).

Almost surely, 2^3921590612 is an apocalyptic number.

It is an amenable number.

3921590612 is a deficient number, since it is larger than the sum of its proper divisors (2941192966).

3921590612 is a wasteful number, since it uses less digits than its factorization.

3921590612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980397657 (or 980397655 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 3921590612 is about 62622.6046408164. The cubic root of 3921590612 is about 1576.9602684719.

The spelling of 3921590612 in words is "three billion, nine hundred twenty-one million, five hundred ninety thousand, six hundred twelve".