7812868 has 24 divisors (see below), whose sum is σ = 16131584. Its totient is φ = 3240000.

The previous prime is 7812851. The next prime is 7812881. The reversal of 7812868 is 8682187.

It is a super-2 number, since 2×7812868² = 122081812770848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7812868.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3633 + ... + 5368.

Almost surely, 2^7812868 is an apocalyptic number.

It is an amenable number.

7812868 is an abundant number, since it is smaller than the sum of its proper divisors (8318716).

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

7812868 is a wasteful number, since it uses less digits than its factorization.

7812868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043 (or 9041 counting only the distinct ones).

The product of its digits is 43008, while the sum is 40.

The square root of 7812868 is about 2795.1508009408. The cubic root of 7812868 is about 198.4282469862.

It can be divided in two parts, 7812 and 868, that multiplied together give a square (6780816 = 2604²).

The spelling of 7812868 in words is "seven million, eight hundred twelve thousand, eight hundred sixty-eight".