3972722 has 16 divisors (see below), whose sum is σ = 6556032. Its totient is φ = 1794000.

The previous prime is 3972697. The next prime is 3972737. The reversal of 3972722 is 2272793.

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, 404 + ... + 2847.

It is an arithmetic number, because the mean of its divisors is an integer number (409752).

Almost surely, 2^3972722 is an apocalyptic number.

3972722 is a deficient number, since it is larger than the sum of its proper divisors (2583310).

3972722 is a wasteful number, since it uses less digits than its factorization.

3972722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313.

The product of its digits is 10584, while the sum is 32.

The square root of 3972722 is about 1993.1688337921. The cubic root of 3972722 is about 158.3784391036.

The spelling of 3972722 in words is "three million, nine hundred seventy-two thousand, seven hundred twenty-two".