3199431487 has 6 divisors (see below), whose sum is σ = 3656664168. Its totient is φ = 2742241572.

The previous prime is 3199431479. The next prime is 3199431497. The reversal of 3199431487 is 7841349913.

It is not a de Polignac number, because 3199431487 - 2³ = 3199431479 is a prime.

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 3199431487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3199431427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138964 + ... + 160342.

It is an arithmetic number, because the mean of its divisors is an integer number (609444028).

Almost surely, 2^3199431487 is an apocalyptic number.

3199431487 is a deficient number, since it is larger than the sum of its proper divisors (457232681).

3199431487 is an frugal number, since it uses more digits than its factorization.

3199431487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42765 (or 21386 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 3199431487 is about 56563.5172792499. The cubic root of 3199431487 is about 1473.5253267960.

The spelling of 3199431487 in words is "three billion, one hundred ninety-nine million, four hundred thirty-one thousand, four hundred eighty-seven".