3876639 has 8 divisors (see below), whose sum is σ = 5566512. Its totient is φ = 2385600.

The previous prime is 3876619. The next prime is 3876641. The reversal of 3876639 is 9366783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3876639 - 2¹² = 3872543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3876639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3876619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49662 + ... + 49739.

It is an arithmetic number, because the mean of its divisors is an integer number (695814).

Almost surely, 2^3876639 is an apocalyptic number.

3876639 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3876639 is a deficient number, since it is larger than the sum of its proper divisors (1689873).

3876639 is a wasteful number, since it uses less digits than its factorization.

3876639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99417.

The product of its digits is 163296, while the sum is 42.

The square root of 3876639 is about 1968.9182309075. The cubic root of 3876639 is about 157.0911745428.

The spelling of 3876639 in words is "three million, eight hundred seventy-six thousand, six hundred thirty-nine".