3865604874 has 32 divisors (see below), whose sum is σ = 8189574336. Its totient is φ = 1212207360.

The previous prime is 3865604849. The next prime is 3865604903. The reversal of 3865604874 is 4784065683.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271624 + ... + 285500.

It is an arithmetic number, because the mean of its divisors is an integer number (255924198).

Almost surely, 2^3865604874 is an apocalyptic number.

3865604874 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3865604874 is an abundant number, since it is smaller than the sum of its proper divisors (4323969462).

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

3865604874 is a wasteful number, since it uses less digits than its factorization.

3865604874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16630.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The square root of 3865604874 is about 62173.9887251896. The cubic root of 3865604874 is about 1569.4198938661.

The spelling of 3865604874 in words is "three billion, eight hundred sixty-five million, six hundred four thousand, eight hundred seventy-four".