791146687 has 2 divisors, whose sum is σ = 791146688. Its totient is φ = 791146686.

The previous prime is 791146679. The next prime is 791146693. The reversal of 791146687 is 786641197.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 791146687 - 2³ = 791146679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 791146687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791140687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395573343 + 395573344.

It is an arithmetic number, because the mean of its divisors is an integer number (395573344).

Almost surely, 2^791146687 is an apocalyptic number.

791146687 is a deficient number, since it is larger than the sum of its proper divisors (1).

791146687 is an equidigital number, since it uses as much as digits as its factorization.

791146687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 49.

The square root of 791146687 is about 28127.3298946061. The cubic root of 791146687 is about 924.8806028506.

The spelling of 791146687 in words is "seven hundred ninety-one million, one hundred forty-six thousand, six hundred eighty-seven".