2899678939 has 4 divisors (see below), whose sum is σ = 3052293640. Its totient is φ = 2747064240.

The previous prime is 2899678927. The next prime is 2899679009. The reversal of 2899678939 is 9398769982.

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 2899678939 - 2⁷ = 2899678811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2899678339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76307322 + ... + 76307359.

It is an arithmetic number, because the mean of its divisors is an integer number (763073410).

Almost surely, 2^2899678939 is an apocalyptic number.

2899678939 is a deficient number, since it is larger than the sum of its proper divisors (152614701).

2899678939 is a wasteful number, since it uses less digits than its factorization.

2899678939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152614700.

The product of its digits is 105815808, while the sum is 70.

The square root of 2899678939 is about 53848.6670122855. The cubic root of 2899678939 is about 1425.9905191268.

The spelling of 2899678939 in words is "two billion, eight hundred ninety-nine million, six hundred seventy-eight thousand, nine hundred thirty-nine".