3868872 has 32 divisors (see below), whose sum is σ = 11054400. Its totient is φ = 1105344.

The previous prime is 3868849. The next prime is 3868897. The reversal of 3868872 is 2788683.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11347 + ... + 11682.

It is an arithmetic number, because the mean of its divisors is an integer number (345450).

Almost surely, 2^3868872 is an apocalyptic number.

It is an amenable number.

3868872 is an abundant number, since it is smaller than the sum of its proper divisors (7185528).

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

3868872 is a wasteful number, since it uses less digits than its factorization.

3868872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23045 (or 23041 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 3868872 is about 1966.9448390842. The cubic root of 3868872 is about 156.9861915993.

The spelling of 3868872 in words is "three million, eight hundred sixty-eight thousand, eight hundred seventy-two".