3864865790 has 32 divisors (see below), whose sum is σ = 7189344000. Its totient is φ = 1494374400.

The previous prime is 3864865777. The next prime is 3864865793. The reversal of 3864865790 is 975684683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3864865793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285086 + ... + 298334.

It is an arithmetic number, because the mean of its divisors is an integer number (224667000).

Almost surely, 2^3864865790 is an apocalyptic number.

3864865790 is a deficient number, since it is larger than the sum of its proper divisors (3324478210).

3864865790 is a wasteful number, since it uses less digits than its factorization.

3864865790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14228.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The square root of 3864865790 is about 62168.0447657798. The cubic root of 3864865790 is about 1569.3198657891.

The spelling of 3864865790 in words is "three billion, eight hundred sixty-four million, eight hundred sixty-five thousand, seven hundred ninety".