8715993 has 24 divisors (see below), whose sum is σ = 13763904. Its totient is φ = 4873440.

The previous prime is 8715989. The next prime is 8716007. The reversal of 8715993 is 3995178.

It is a happy number.

It is not a de Polignac number, because 8715993 - 2² = 8715989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8715193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3796 + ... + 5642.

It is an arithmetic number, because the mean of its divisors is an integer number (573496).

Almost surely, 2^8715993 is an apocalyptic number.

It is an amenable number.

8715993 is a deficient number, since it is larger than the sum of its proper divisors (5047911).

8715993 is a wasteful number, since it uses less digits than its factorization.

8715993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885 (or 1874 counting only the distinct ones).

The product of its digits is 68040, while the sum is 42.

The square root of 8715993 is about 2952.2860633753. The cubic root of 8715993 is about 205.7969611608.

The spelling of 8715993 in words is "eight million, seven hundred fifteen thousand, nine hundred ninety-three".