2921972 has 12 divisors (see below), whose sum is σ = 5382720. Its totient is φ = 1384056.

The previous prime is 2921957. The next prime is 2921981. The reversal of 2921972 is 2791292.

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, 19148 + ... + 19299.

It is an arithmetic number, because the mean of its divisors is an integer number (448560).

2^2921972 is an apocalyptic number.

It is an amenable number.

2921972 is a deficient number, since it is larger than the sum of its proper divisors (2460748).

2921972 is a wasteful number, since it uses less digits than its factorization.

2921972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38470 (or 38468 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 2921972 is about 1709.3776645317. The cubic root of 2921972 is about 142.9635586149.

The spelling of 2921972 in words is "two million, nine hundred twenty-one thousand, nine hundred seventy-two".