2791830887 has 2 divisors, whose sum is σ = 2791830888. Its totient is φ = 2791830886.

The previous prime is 2791830793. The next prime is 2791830961. The reversal of 2791830887 is 7880381972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2791830887 - 2⁸ = 2791830631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2791830187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395915443 + 1395915444.

It is an arithmetic number, because the mean of its divisors is an integer number (1395915444).

Almost surely, 2^2791830887 is an apocalyptic number.

2791830887 is a deficient number, since it is larger than the sum of its proper divisors (1).

2791830887 is an equidigital number, since it uses as much as digits as its factorization.

2791830887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The square root of 2791830887 is about 52837.7789748964. The cubic root of 2791830887 is about 1408.0876926419.

The spelling of 2791830887 in words is "two billion, seven hundred ninety-one million, eight hundred thirty thousand, eight hundred eighty-seven".