7499868 has 24 divisors (see below), whose sum is σ = 17619840. Its totient is φ = 2482800.

The previous prime is 7499867. The next prime is 7499887. The reversal of 7499868 is 8689947.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7499868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7499867) 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 7 ways as a sum of consecutive naturals, for example, 258 + ... + 3881.

It is an arithmetic number, because the mean of its divisors is an integer number (734160).

Almost surely, 2^7499868 is an apocalyptic number.

It is an amenable number.

7499868 is an abundant number, since it is smaller than the sum of its proper divisors (10119972).

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

7499868 is a wasteful number, since it uses less digits than its factorization.

7499868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297 (or 4295 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 7499868 is about 2738.5886876273. The cubic root of 7499868 is about 195.7422336905.

The spelling of 7499868 in words is "seven million, four hundred ninety-nine thousand, eight hundred sixty-eight".