3872615 has 4 divisors (see below), whose sum is σ = 4647144. Its totient is φ = 3098088.

The previous prime is 3872591. The next prime is 3872647. The reversal of 3872615 is 5162783.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3872615 - 2⁸ = 3872359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387257 + ... + 387266.

It is an arithmetic number, because the mean of its divisors is an integer number (1161786).

Almost surely, 2^3872615 is an apocalyptic number.

3872615 is a deficient number, since it is larger than the sum of its proper divisors (774529).

3872615 is an equidigital number, since it uses as much as digits as its factorization.

3872615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774528.

The product of its digits is 10080, while the sum is 32.

The square root of 3872615 is about 1967.8960846549. The cubic root of 3872615 is about 157.0368015207.

The spelling of 3872615 in words is "three million, eight hundred seventy-two thousand, six hundred fifteen".