3949875279 has 32 divisors (see below), whose sum is σ = 6710538240. Its totient is φ = 2249336736.

The previous prime is 3949875247. The next prime is 3949875283. The reversal of 3949875279 is 9725789493.

3949875279 is a `hidden beast` number, since 3 + 9 + 498 + 75 + 2 + 79 = 666.

It is not a de Polignac number, because 3949875279 - 2⁵ = 3949875247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949875289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19714 + ... + 91040.

It is an arithmetic number, because the mean of its divisors is an integer number (209704320).

Almost surely, 2^3949875279 is an apocalyptic number.

3949875279 is a deficient number, since it is larger than the sum of its proper divisors (2760662961).

3949875279 is a wasteful number, since it uses less digits than its factorization.

3949875279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71636 (or 71630 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The square root of 3949875279 is about 62848.0332150498. The cubic root of 3949875279 is about 1580.7424912488.

The spelling of 3949875279 in words is "three billion, nine hundred forty-nine million, eight hundred seventy-five thousand, two hundred seventy-nine".