7887872 has 22 divisors (see below), whose sum is σ = 15770088. Its totient is φ = 3943424.

The previous prime is 7887871. The next prime is 7887883. The reversal of 7887872 is 2787887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7887871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828 + ... + 4875.

Almost surely, 2^7887872 is an apocalyptic number.

It is an amenable number.

7887872 is a deficient number, since it is larger than the sum of its proper divisors (7882216).

7887872 is an equidigital number, since it uses as much as digits as its factorization.

7887872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7723 (or 7705 counting only the distinct ones).

The product of its digits is 351232, while the sum is 47.

The square root of 7887872 is about 2808.5355614626. The cubic root of 7887872 is about 199.0612001694.

The spelling of 7887872 in words is "seven million, eight hundred eighty-seven thousand, eight hundred seventy-two".