8399315 has 4 divisors (see below), whose sum is σ = 10079184. Its totient is φ = 6719448.

The previous prime is 8399297. The next prime is 8399317. The reversal of 8399315 is 5139938.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5139938 = 2 ⋅2569969.

It is a cyclic number.

It is not a de Polignac number, because 8399315 - 2¹⁶ = 8333779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8399317) 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, 839927 + ... + 839936.

It is an arithmetic number, because the mean of its divisors is an integer number (2519796).

Almost surely, 2^8399315 is an apocalyptic number.

8399315 is a deficient number, since it is larger than the sum of its proper divisors (1679869).

8399315 is a wasteful number, since it uses less digits than its factorization.

8399315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679868.

The product of its digits is 29160, while the sum is 38.

The square root of 8399315 is about 2898.1571731016. The cubic root of 8399315 is about 203.2737455659.

The spelling of 8399315 in words is "eight million, three hundred ninety-nine thousand, three hundred fifteen".