7947872 has 12 divisors (see below), whose sum is σ = 15647436. Its totient is φ = 3973920.

The previous prime is 7947869. The next prime is 7947899. The reversal of 7947872 is 2787497.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124154 + ... + 124217.

It is an arithmetic number, because the mean of its divisors is an integer number (1303953).

Almost surely, 2^7947872 is an apocalyptic number.

It is an amenable number.

7947872 is a deficient number, since it is larger than the sum of its proper divisors (7699564).

7947872 is a wasteful number, since it uses less digits than its factorization.

7947872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248381 (or 248373 counting only the distinct ones).

The product of its digits is 197568, while the sum is 44.

The square root of 7947872 is about 2819.1970488066. The cubic root of 7947872 is about 199.5646530528.

The spelling of 7947872 in words is "seven million, nine hundred forty-seven thousand, eight hundred seventy-two".