7278872 has 8 divisors (see below), whose sum is σ = 13647900. Its totient is φ = 3639432.

The previous prime is 7278857. The next prime is 7278883. The reversal of 7278872 is 2788727.

It is a tau number, because it is divible by the number of its divisors (8).

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, 454922 + ... + 454937.

Almost surely, 2^7278872 is an apocalyptic number.

It is an amenable number.

7278872 is a deficient number, since it is larger than the sum of its proper divisors (6369028).

7278872 is a wasteful number, since it uses less digits than its factorization.

7278872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909865 (or 909861 counting only the distinct ones).

The product of its digits is 87808, while the sum is 41.

The square root of 7278872 is about 2697.9384722414. The cubic root of 7278872 is about 193.8004111628.

The spelling of 7278872 in words is "seven million, two hundred seventy-eight thousand, eight hundred seventy-two".