8399393 has 8 divisors (see below), whose sum is σ = 8849088. Its totient is φ = 7956784.

The previous prime is 8399381. The next prime is 8399401. The reversal of 8399393 is 3939938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8399393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8399093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755 + ... + 4167.

It is an arithmetic number, because the mean of its divisors is an integer number (1106136).

Almost surely, 2^8399393 is an apocalyptic number.

It is an amenable number.

8399393 is a deficient number, since it is larger than the sum of its proper divisors (449695).

8399393 is a wasteful number, since it uses less digits than its factorization.

8399393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3543.

The product of its digits is 157464, while the sum is 44.

The square root of 8399393 is about 2898.1706298974. The cubic root of 8399393 is about 203.2743747959.

The spelling of 8399393 in words is "eight million, three hundred ninety-nine thousand, three hundred ninety-three".