3975279 has 16 divisors (see below), whose sum is σ = 6608640. Its totient is φ = 2064960.

The previous prime is 3975277. The next prime is 3975281. The reversal of 3975279 is 9725793.

It is an interprime number because it is at equal distance from previous prime (3975277) and next prime (3975281).

It is not a de Polignac number, because 3975279 - 2¹ = 3975277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3975279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975271) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8374 + ... + 8835.

It is an arithmetic number, because the mean of its divisors is an integer number (413040).

Almost surely, 2^3975279 is an apocalyptic number.

3975279 is a deficient number, since it is larger than the sum of its proper divisors (2633361).

3975279 is a wasteful number, since it uses less digits than its factorization.

3975279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17230.

The product of its digits is 119070, while the sum is 42.

The square root of 3975279 is about 1993.8101715058. The cubic root of 3975279 is about 158.4124113451.

The spelling of 3975279 in words is "three million, nine hundred seventy-five thousand, two hundred seventy-nine".