2879794891 has 2 divisors, whose sum is σ = 2879794892. Its totient is φ = 2879794890.

The previous prime is 2879794807. The next prime is 2879794903. The reversal of 2879794891 is 1984979782.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2879794891 is a prime.

It is a super-2 number, since 2×2879794891² = 16586437228459403762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2879794391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1439897445 + 1439897446.

It is an arithmetic number, because the mean of its divisors is an integer number (1439897446).

Almost surely, 2^2879794891 is an apocalyptic number.

2879794891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2879794891 is an equidigital number, since it uses as much as digits as its factorization.

2879794891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18289152, while the sum is 64.

The square root of 2879794891 is about 53663.7204356910. The cubic root of 2879794891 is about 1422.7235454928.

The spelling of 2879794891 in words is "two billion, eight hundred seventy-nine million, seven hundred ninety-four thousand, eight hundred ninety-one".