8668791 has 12 divisors (see below), whose sum is σ = 12593880. Its totient is φ = 5745840.

The previous prime is 8668783. The next prime is 8668799. The reversal of 8668791 is 1978668.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8668783) and next prime (8668799).

It is not a de Polignac number, because 8668791 - 2³ = 8668783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8668799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1080 + ... + 4301.

It is an arithmetic number, because the mean of its divisors is an integer number (1049490).

Almost surely, 2^8668791 is an apocalyptic number.

8668791 is a deficient number, since it is larger than the sum of its proper divisors (3925089).

8668791 is a wasteful number, since it uses less digits than its factorization.

8668791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566 (or 5563 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 8668791 is about 2944.2810667462. The cubic root of 8668791 is about 205.4247864413.

The spelling of 8668791 in words is "eight million, six hundred sixty-eight thousand, seven hundred ninety-one".