8615791 has 2 divisors, whose sum is σ = 8615792. Its totient is φ = 8615790.

The previous prime is 8615771. The next prime is 8615809. The reversal of 8615791 is 1975168.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8615791 - 2⁹ = 8615279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8615791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8615771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4307895 + 4307896.

It is an arithmetic number, because the mean of its divisors is an integer number (4307896).

Almost surely, 2^8615791 is an apocalyptic number.

8615791 is a deficient number, since it is larger than the sum of its proper divisors (1).

8615791 is an equidigital number, since it uses as much as digits as its factorization.

8615791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 37.

The square root of 8615791 is about 2935.2667681150. The cubic root of 8615791 is about 205.0052824338.

The spelling of 8615791 in words is "eight million, six hundred fifteen thousand, seven hundred ninety-one".