8613399 has 4 divisors (see below), whose sum is σ = 11484536. Its totient is φ = 5742264.

The previous prime is 8613391. The next prime is 8613421. The reversal of 8613399 is 9933168.

8613399 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8613399 - 2³ = 8613391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8613391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435564 + ... + 1435569.

It is an arithmetic number, because the mean of its divisors is an integer number (2871134).

Almost surely, 2^8613399 is an apocalyptic number.

8613399 is a deficient number, since it is larger than the sum of its proper divisors (2871137).

8613399 is a wasteful number, since it uses less digits than its factorization.

8613399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871136.

The product of its digits is 34992, while the sum is 39.

The square root of 8613399 is about 2934.8592811241. The cubic root of 8613399 is about 204.9863088219.

The spelling of 8613399 in words is "eight million, six hundred thirteen thousand, three hundred ninety-nine".