3876399 has 12 divisors (see below), whose sum is σ = 5894200. Its totient is φ = 2448144.

The previous prime is 3876371. The next prime is 3876403. The reversal of 3876399 is 9936783.

It is a happy number.

3876399 is a `hidden beast` number, since 3 + 8 + 7 + 639 + 9 = 666.

It is not a de Polignac number, because 3876399 - 2⁸ = 3876143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3876319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11164 + ... + 11505.

Almost surely, 2^3876399 is an apocalyptic number.

3876399 is a deficient number, since it is larger than the sum of its proper divisors (2017801).

3876399 is a wasteful number, since it uses less digits than its factorization.

3876399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22694 (or 22691 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 3876399 is about 1968.8572827912. The cubic root of 3876399 is about 157.0879326744.

It can be divided in two parts, 387 and 6399, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 3876399 in words is "three million, eight hundred seventy-six thousand, three hundred ninety-nine".