3984479609931 has 12 divisors (see below), whose sum is σ = 5755393946952. Its totient is φ = 2656303812096.

The previous prime is 3984479609899. The next prime is 3984479609933. The reversal of 3984479609931 is 1399069744893.

3984479609931 is a `hidden beast` number, since 3 + 9 + 8 + 4 + 4 + 7 + 9 + 609 + 9 + 3 + 1 = 666.

It is not a de Polignac number, because 3984479609931 - 2⁵ = 3984479609899 is a prime.

It is a super-2 number, since 2×3984479609931² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3984479609931.

It is not an unprimeable number, because it can be changed into a prime (3984479609933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371440 + ... + 2847266.

It is an arithmetic number, because the mean of its divisors is an integer number (479616162246).

Almost surely, 2^{3984479609931} is an apocalyptic number.

3984479609931 is a deficient number, since it is larger than the sum of its proper divisors (1770914337021).

3984479609931 is a wasteful number, since it uses less digits than its factorization.

3984479609931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654650 (or 2654647 counting only the distinct ones).

The product of its (nonzero) digits is 317447424, while the sum is 72.

The spelling of 3984479609931 in words is "three trillion, nine hundred eighty-four billion, four hundred seventy-nine million, six hundred nine thousand, nine hundred thirty-one".