3876645 has 8 divisors (see below), whose sum is σ = 6202656. Its totient is φ = 2067536.

The previous prime is 3876641. The next prime is 3876659. The reversal of 3876645 is 5466783.

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

It is a cyclic number.

It is not a de Polignac number, because 3876645 - 2² = 3876641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3876641) 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, 129207 + ... + 129236.

It is an arithmetic number, because the mean of its divisors is an integer number (775332).

Almost surely, 2^3876645 is an apocalyptic number.

It is an amenable number.

3876645 is a deficient number, since it is larger than the sum of its proper divisors (2326011).

3876645 is a wasteful number, since it uses less digits than its factorization.

3876645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258451.

The product of its digits is 120960, while the sum is 39.

The square root of 3876645 is about 1968.9197545863. The cubic root of 3876645 is about 157.0912555878.

The spelling of 3876645 in words is "three million, eight hundred seventy-six thousand, six hundred forty-five".