3721880 has 16 divisors (see below), whose sum is σ = 8374320. Its totient is φ = 1488736.

The previous prime is 3721877. The next prime is 3721901. The reversal of 3721880 is 881273.

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, 46484 + ... + 46563.

It is an arithmetic number, because the mean of its divisors is an integer number (523395).

Almost surely, 2^3721880 is an apocalyptic number.

It is an amenable number.

3721880 is an abundant number, since it is smaller than the sum of its proper divisors (4652440).

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

3721880 is a wasteful number, since it uses less digits than its factorization.

3721880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93058 (or 93054 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 3721880 is about 1929.2174579347. The cubic root of 3721880 is about 154.9723155551.

The spelling of 3721880 in words is "three million, seven hundred twenty-one thousand, eight hundred eighty".