3979719 has 8 divisors (see below), whose sum is σ = 5895920. Its totient is φ = 2653128.

The previous prime is 3979711. The next prime is 3979739. The reversal of 3979719 is 9179793.

It is not a de Polignac number, because 3979719 - 2³ = 3979711 is a prime.

It is a super-2 number, since 2×3979719² = 31676326637922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73672 + ... + 73725.

It is an arithmetic number, because the mean of its divisors is an integer number (736990).

Almost surely, 2^3979719 is an apocalyptic number.

3979719 is a deficient number, since it is larger than the sum of its proper divisors (1916201).

3979719 is a wasteful number, since it uses less digits than its factorization.

3979719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147406 (or 147400 counting only the distinct ones).

The product of its digits is 107163, while the sum is 45.

The square root of 3979719 is about 1994.9233067965. The cubic root of 3979719 is about 158.4713664868.

The spelling of 3979719 in words is "three million, nine hundred seventy-nine thousand, seven hundred nineteen".