3979229975 has 18 divisors (see below), whose sum is σ = 5739837984. Its totient is φ = 2728614000.

The previous prime is 3979229963. The next prime is 3979229981. The reversal of 3979229975 is 5799229793.

It is a happy number.

It is not a de Polignac number, because 3979229975 - 2⁴ = 3979229959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1622951 + ... + 1625400.

It is an arithmetic number, because the mean of its divisors is an integer number (318879888).

Almost surely, 2^3979229975 is an apocalyptic number.

3979229975 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3979229975 is a deficient number, since it is larger than the sum of its proper divisors (1760608009).

3979229975 is a wasteful number, since it uses less digits than its factorization.

3979229975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248375 (or 3248363 counting only the distinct ones).

The product of its digits is 19289340, while the sum is 62.

The square root of 3979229975 is about 63081.1380287325. The cubic root of 3979229975 is about 1584.6487527188.

The spelling of 3979229975 in words is "three billion, nine hundred seventy-nine million, two hundred twenty-nine thousand, nine hundred seventy-five".