2308979899 has 4 divisors (see below), whose sum is σ = 2444802264. Its totient is φ = 2173157536.

The previous prime is 2308979879. The next prime is 2308979947. The reversal of 2308979899 is 9989798032.

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 2308979899 - 2¹¹ = 2308977851 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 2308979899.

It is not an unprimeable number, because it can be changed into a prime (2308979839) 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, 67911157 + ... + 67911190.

It is an arithmetic number, because the mean of its divisors is an integer number (611200566).

Almost surely, 2^2308979899 is an apocalyptic number.

2308979899 is a deficient number, since it is larger than the sum of its proper divisors (135822365).

2308979899 is a wasteful number, since it uses less digits than its factorization.

2308979899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135822364.

The product of its (nonzero) digits is 17635968, while the sum is 64.

The square root of 2308979899 is about 48051.8459478926. The cubic root of 2308979899 is about 1321.7217925849.

The spelling of 2308979899 in words is "two billion, three hundred eight million, nine hundred seventy-nine thousand, eight hundred ninety-nine".