2079007891 has 2 divisors, whose sum is σ = 2079007892. Its totient is φ = 2079007890.

The previous prime is 2079007867. The next prime is 2079007897. The reversal of 2079007891 is 1987009702.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2079007891 - 2¹⁵ = 2078975123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2079007897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039503945 + 1039503946.

It is an arithmetic number, because the mean of its divisors is an integer number (1039503946).

Almost surely, 2^2079007891 is an apocalyptic number.

2079007891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2079007891 is an equidigital number, since it uses as much as digits as its factorization.

2079007891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 2079007891 is about 45596.1389922436. The cubic root of 2079007891 is about 1276.2978742918.

The spelling of 2079007891 in words is "two billion, seventy-nine million, seven thousand, eight hundred ninety-one".