7899772 has 12 divisors (see below), whose sum is σ = 13857480. Its totient is φ = 3940496.

The previous prime is 7899751. The next prime is 7899779. The reversal of 7899772 is 2779987.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7899779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247 + ... + 3982.

It is an arithmetic number, because the mean of its divisors is an integer number (1154790).

Almost surely, 2^7899772 is an apocalyptic number.

It is an amenable number.

7899772 is a deficient number, since it is larger than the sum of its proper divisors (5957708).

7899772 is a wasteful number, since it uses less digits than its factorization.

7899772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700 (or 4698 counting only the distinct ones).

The product of its digits is 444528, while the sum is 49.

The square root of 7899772 is about 2810.6533048386. The cubic root of 7899772 is about 199.1612541104.

The spelling of 7899772 in words is "seven million, eight hundred ninety-nine thousand, seven hundred seventy-two".