8313389 has 6 divisors (see below), whose sum is σ = 9670734. Its totient is φ = 7125720.

The previous prime is 8313377. The next prime is 8313413. The reversal of 8313389 is 9833138.

It can be written as a sum of positive squares in only one way, i.e., 6708100 + 1605289 = 2590^2 + 1267^2 .

It is not a de Polignac number, because 8313389 - 2⁸ = 8313133 is a prime.

It is a super-2 number, since 2×8313389² = 138224873330642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8313359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84782 + ... + 84879.

It is an arithmetic number, because the mean of its divisors is an integer number (1611789).

Almost surely, 2^8313389 is an apocalyptic number.

It is an amenable number.

8313389 is a deficient number, since it is larger than the sum of its proper divisors (1357345).

8313389 is a wasteful number, since it uses less digits than its factorization.

8313389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169675 (or 169668 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 8313389 is about 2883.2948166984. The cubic root of 8313389 is about 202.5781966963.

The spelling of 8313389 in words is "eight million, three hundred thirteen thousand, three hundred eighty-nine".