7868115 has 24 divisors (see below), whose sum is σ = 13899600. Its totient is φ = 4115904.

The previous prime is 7868111. The next prime is 7868131. The reversal of 7868115 is 5118687.

It is not a de Polignac number, because 7868115 - 2² = 7868111 is a prime.

It is a super-3 number, since 3×7868115³ (a number of 22 digits) contains 333 as substring.

It is an Ulam number.

Its product of digits (13440) is a multiple of the sum of its prime divisors (3360).

It is a self number, because there is not a number n which added to its sum of digits gives 7868115.

It is not an unprimeable number, because it can be changed into a prime (7868111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 736 + ... + 4034.

It is an arithmetic number, because the mean of its divisors is an integer number (579150).

Almost surely, 2^7868115 is an apocalyptic number.

7868115 is a deficient number, since it is larger than the sum of its proper divisors (6031485).

7868115 is a wasteful number, since it uses less digits than its factorization.

7868115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363 (or 3360 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 7868115 is about 2805.0160427349. The cubic root of 7868115 is about 198.8948629415.

The spelling of 7868115 in words is "seven million, eight hundred sixty-eight thousand, one hundred fifteen".