3979922 has 4 divisors (see below), whose sum is σ = 5969886. Its totient is φ = 1989960.

The previous prime is 3979901. The next prime is 3979957. The reversal of 3979922 is 2299793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2299793 = 23 ⋅99991.

It can be written as a sum of positive squares in only one way, i.e., 2961841 + 1018081 = 1721^2 + 1009^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3979922.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 994979 + ... + 994982.

Almost surely, 2^3979922 is an apocalyptic number.

3979922 is a deficient number, since it is larger than the sum of its proper divisors (1989964).

3979922 is a wasteful number, since it uses less digits than its factorization.

3979922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989963.

The product of its digits is 61236, while the sum is 41.

The square root of 3979922 is about 1994.9741852966. The cubic root of 3979922 is about 158.4740609099.

It can be divided in two parts, 39799 and 22, that multiplied together give a palindrome (875578).

The spelling of 3979922 in words is "three million, nine hundred seventy-nine thousand, nine hundred twenty-two".