6391315 has 24 divisors (see below), whose sum is σ = 9398160. Its totient is φ = 4148928.

The previous prime is 6391289. The next prime is 6391321. The reversal of 6391315 is 5131936.

It is not a de Polignac number, because 6391315 - 2¹¹ = 6389267 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3969 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (391590).

Almost surely, 2^6391315 is an apocalyptic number.

6391315 is a deficient number, since it is larger than the sum of its proper divisors (3006845).

6391315 is a wasteful number, since it uses less digits than its factorization.

6391315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411 (or 1404 counting only the distinct ones).

The product of its digits is 2430, while the sum is 28.

The square root of 6391315 is about 2528.1050215527. The cubic root of 6391315 is about 185.5795315784.

It can be divided in two parts, 63 and 91315, that added together give a triangular number (91378 = T₄₂₇).

The spelling of 6391315 in words is "six million, three hundred ninety-one thousand, three hundred fifteen".