2089967879 has 4 divisors (see below), whose sum is σ = 2212907184. Its totient is φ = 1967028576.

The previous prime is 2089967839. The next prime is 2089967923. The reversal of 2089967879 is 9787699802.

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 2089967879 - 2⁸ = 2089967623 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 (2089967839) 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, 61469627 + ... + 61469660.

It is an arithmetic number, because the mean of its divisors is an integer number (553226796).

Almost surely, 2^2089967879 is an apocalyptic number.

2089967879 is a deficient number, since it is larger than the sum of its proper divisors (122939305).

2089967879 is a wasteful number, since it uses less digits than its factorization.

2089967879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122939304.

The product of its (nonzero) digits is 27433728, while the sum is 65.

The square root of 2089967879 is about 45716.1664950157. The cubic root of 2089967879 is about 1278.5367146627.

The spelling of 2089967879 in words is "two billion, eighty-nine million, nine hundred sixty-seven thousand, eight hundred seventy-nine".