3979344731 has 4 divisors (see below), whose sum is σ = 3996875112. Its totient is φ = 3961814352.

The previous prime is 3979344703. The next prime is 3979344769. The reversal of 3979344731 is 1374439793.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3979344731 - 2¹⁰ = 3979343707 is a prime.

It is a super-2 number, since 2×3979344731² = 31670368976274924722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3979344731.

It is not an unprimeable number, because it can be changed into a prime (3979344631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8764850 + ... + 8765303.

It is an arithmetic number, because the mean of its divisors is an integer number (999218778).

Almost surely, 2^3979344731 is an apocalyptic number.

3979344731 is a deficient number, since it is larger than the sum of its proper divisors (17530381).

3979344731 is a wasteful number, since it uses less digits than its factorization.

3979344731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17530380.

The product of its digits is 1714608, while the sum is 50.

The square root of 3979344731 is about 63082.0476126132. The cubic root of 3979344731 is about 1584.6639856663.

The spelling of 3979344731 in words is "three billion, nine hundred seventy-nine million, three hundred forty-four thousand, seven hundred thirty-one".