3129989407 has 8 divisors (see below), whose sum is σ = 3151053360. Its totient is φ = 3108948480.

The previous prime is 3129989381. The next prime is 3129989411. The reversal of 3129989407 is 7049899213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3129989407 - 2⁷ = 3129989279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3129989417) 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, 332607 + ... + 341887.

It is an arithmetic number, because the mean of its divisors is an integer number (393881670).

Almost surely, 2^3129989407 is an apocalyptic number.

3129989407 is a deficient number, since it is larger than the sum of its proper divisors (21063953).

3129989407 is a wasteful number, since it uses less digits than its factorization.

3129989407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 3129989407 is about 55946.3082517515. The cubic root of 3129989407 is about 1462.7865414837.

The spelling of 3129989407 in words is "three billion, one hundred twenty-nine million, nine hundred eighty-nine thousand, four hundred seven".