3972458 has 16 divisors (see below), whose sum is σ = 7210944. Its totient is φ = 1602240.

The previous prime is 3972439. The next prime is 3972467. The reversal of 3972458 is 8542793.

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, 8108 + ... + 8583.

It is an arithmetic number, because the mean of its divisors is an integer number (450684).

Almost surely, 2^3972458 is an apocalyptic number.

3972458 is a deficient number, since it is larger than the sum of its proper divisors (3238486).

3972458 is a wasteful number, since it uses less digits than its factorization.

3972458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16717.

The product of its digits is 60480, while the sum is 38.

The square root of 3972458 is about 1993.1026064907. The cubic root of 3972458 is about 158.3749307757.

The spelling of 3972458 in words is "three million, nine hundred seventy-two thousand, four hundred fifty-eight".