7868136 has 16 divisors (see below), whose sum is σ = 19670400. Its totient is φ = 2622704.

The previous prime is 7868131. The next prime is 7868137. The reversal of 7868136 is 6318687.

It is a super-2 number, since 2×7868136² = 123815128228992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7868094 and 7868103.

It is not an unprimeable number, because it can be changed into a prime (7868131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163896 + ... + 163943.

It is an arithmetic number, because the mean of its divisors is an integer number (1229400).

Almost surely, 2^7868136 is an apocalyptic number.

It is an amenable number.

7868136 is an abundant number, since it is smaller than the sum of its proper divisors (11802264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7868136 is a wasteful number, since it uses less digits than its factorization.

7868136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327848 (or 327844 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 7868136 is about 2805.0197860265. The cubic root of 7868136 is about 198.8950398915.

The spelling of 7868136 in words is "seven million, eight hundred sixty-eight thousand, one hundred thirty-six".