3872620 has 24 divisors (see below), whose sum is σ = 8177904. Its totient is φ = 1540416.

The previous prime is 3872591. The next prime is 3872647. The reversal of 3872620 is 262783.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4114 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (340746).

Almost surely, 2^3872620 is an apocalyptic number.

It is an amenable number.

3872620 is an abundant number, since it is smaller than the sum of its proper divisors (4305284).

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

3872620 is a wasteful number, since it uses less digits than its factorization.

3872620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 3872620 is about 1967.8973550468. The cubic root of 3872620 is about 157.0368691050.

The spelling of 3872620 in words is "three million, eight hundred seventy-two thousand, six hundred twenty".