3979361529 has 96 divisors (see below), whose sum is σ = 6937467264. Its totient is φ = 2166128640.

The previous prime is 3979361509. The next prime is 3979361567. The reversal of 3979361529 is 9251639793.

It is a happy number.

It is not a de Polignac number, because 3979361529 - 2¹³ = 3979353337 is a prime.

Its product of digits (2755620) is a multiple of the sum of its prime factors (567).

It is not an unprimeable number, because it can be changed into a prime (3979361509) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15483769 + ... + 15484025.

It is an arithmetic number, because the mean of its divisors is an integer number (72265284).

Almost surely, 2^3979361529 is an apocalyptic number.

3979361529 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3979361529 is a deficient number, since it is larger than the sum of its proper divisors (2958105735).

3979361529 is a wasteful number, since it uses less digits than its factorization.

3979361529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 564 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The square root of 3979361529 is about 63082.1807565338. The cubic root of 3979361529 is about 1584.6662154428. Note that the first 3 decimals are identical.

The spelling of 3979361529 in words is "three billion, nine hundred seventy-nine million, three hundred sixty-one thousand, five hundred twenty-nine".