3721886 has 16 divisors (see below), whose sum is σ = 6459264. Its totient is φ = 1575384.

The previous prime is 3721877. The next prime is 3721901. The reversal of 3721886 is 6881273.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440 + ... + 2763.

It is an arithmetic number, because the mean of its divisors is an integer number (403704).

Almost surely, 2^3721886 is an apocalyptic number.

3721886 is a deficient number, since it is larger than the sum of its proper divisors (2737378).

3721886 is a wasteful number, since it uses less digits than its factorization.

3721886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295.

The product of its digits is 16128, while the sum is 35.

The square root of 3721886 is about 1929.2190129687. The cubic root of 3721886 is about 154.9723988314.

The spelling of 3721886 in words is "three million, seven hundred twenty-one thousand, eight hundred eighty-six".