3997659044 has 6 divisors (see below), whose sum is σ = 6995903334. Its totient is φ = 1998829520.

The previous prime is 3997659031. The next prime is 3997659097. The reversal of 3997659044 is 4409567993.

It can be written as a sum of positive squares in only one way, i.e., 2993402944 + 1004256100 = 54712^2 + 31690^2 .

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, 499707377 + ... + 499707384.

It is an arithmetic number, because the mean of its divisors is an integer number (1165983889).

Almost surely, 2^3997659044 is an apocalyptic number.

It is an amenable number.

3997659044 is a deficient number, since it is larger than the sum of its proper divisors (2998244290).

3997659044 is a wasteful number, since it uses less digits than its factorization.

3997659044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999414765 (or 999414763 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 56.

The square root of 3997659044 is about 63227.0436126821. The cubic root of 3997659044 is about 1587.0913218702.

The spelling of 3997659044 in words is "three billion, nine hundred ninety-seven million, six hundred fifty-nine thousand, forty-four".