2979899047 has 4 divisors (see below), whose sum is σ = 2981295616. Its totient is φ = 2978502480.

The previous prime is 2979899023. The next prime is 2979899053. The reversal of 2979899047 is 7409989792.

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 2979899047 - 2²³ = 2971510439 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 2979899047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2979899647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695079 + ... + 699352.

It is an arithmetic number, because the mean of its divisors is an integer number (745323904).

Almost surely, 2^2979899047 is an apocalyptic number.

2979899047 is a deficient number, since it is larger than the sum of its proper divisors (1396569).

2979899047 is a wasteful number, since it uses less digits than its factorization.

2979899047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396568.

The product of its (nonzero) digits is 20575296, while the sum is 64.

The square root of 2979899047 is about 54588.4515900570. The cubic root of 2979899047 is about 1439.0211723461.

The spelling of 2979899047 in words is "two billion, nine hundred seventy-nine million, eight hundred ninety-nine thousand, forty-seven".