3721005564 has 24 divisors (see below), whose sum is σ = 8700951168. Its totient is φ = 1237677360.

The previous prime is 3721005499. The next prime is 3721005601. The reversal of 3721005564 is 4655001273.

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, 326392 + ... + 337599.

It is an arithmetic number, because the mean of its divisors is an integer number (362539632).

Almost surely, 2^3721005564 is an apocalyptic number.

It is an amenable number.

3721005564 is an abundant number, since it is smaller than the sum of its proper divisors (4979945604).

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

3721005564 is a wasteful number, since it uses less digits than its factorization.

3721005564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664465 (or 664463 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 3721005564 is about 61000.0456065403. The cubic root of 3721005564 is about 1549.6017796280.

The spelling of 3721005564 in words is "three billion, seven hundred twenty-one million, five thousand, five hundred sixty-four".