791696887 has 2 divisors, whose sum is σ = 791696888. Its totient is φ = 791696886.

The previous prime is 791696861. The next prime is 791696903. The reversal of 791696887 is 788696197.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791696887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791696827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395848443 + 395848444.

It is an arithmetic number, because the mean of its divisors is an integer number (395848444).

Almost surely, 2^791696887 is an apocalyptic number.

791696887 is a deficient number, since it is larger than the sum of its proper divisors (1).

791696887 is an equidigital number, since it uses as much as digits as its factorization.

791696887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 61.

The square root of 791696887 is about 28137.1087178480. The cubic root of 791696887 is about 925.0949547518.

The spelling of 791696887 in words is "seven hundred ninety-one million, six hundred ninety-six thousand, eight hundred eighty-seven".