2547872 has 12 divisors (see below), whose sum is σ = 5016186. Its totient is φ = 1273920.

The previous prime is 2547847. The next prime is 2547887. The reversal of 2547872 is 2787452.

It can be written as a sum of positive squares in only one way, i.e., 2421136 + 126736 = 1556^2 + 356^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39779 + ... + 39842.

2^2547872 is an apocalyptic number.

It is an amenable number.

2547872 is a deficient number, since it is larger than the sum of its proper divisors (2468314).

2547872 is an equidigital number, since it uses as much as digits as its factorization.

2547872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79631 (or 79623 counting only the distinct ones).

The product of its digits is 31360, while the sum is 35.

The square root of 2547872 is about 1596.2055005544. The cubic root of 2547872 is about 136.5817067296.

The spelling of 2547872 in words is "two million, five hundred forty-seven thousand, eight hundred seventy-two".