8313993 has 12 divisors (see below), whose sum is σ = 12037428. Its totient is φ = 5529600.

The previous prime is 8313989. The next prime is 8314049. The reversal of 8313993 is 3993138.

It can be written as a sum of positive squares in 2 ways, for example, as 8277129 + 36864 = 2877^2 + 192^2 .

It is not a de Polignac number, because 8313993 - 2² = 8313989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8313913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4393 + ... + 5993.

It is an arithmetic number, because the mean of its divisors is an integer number (1003119).

Almost surely, 2^8313993 is an apocalyptic number.

It is an amenable number.

8313993 is a deficient number, since it is larger than the sum of its proper divisors (3723435).

8313993 is a wasteful number, since it uses less digits than its factorization.

8313993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2181 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 8313993 is about 2883.3995560796. The cubic root of 8313993 is about 202.5831026084.

The spelling of 8313993 in words is "eight million, three hundred thirteen thousand, nine hundred ninety-three".