7872544 has 12 divisors (see below), whose sum is σ = 15499134. Its totient is φ = 3936256.

The previous prime is 7872541. The next prime is 7872559. The reversal of 7872544 is 4452787.

It can be written as a sum of positive squares in only one way, i.e., 3952144 + 3920400 = 1988^2 + 1980^2 .

It is not an unprimeable number, because it can be changed into a prime (7872541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122977 + ... + 123040.

Almost surely, 2^7872544 is an apocalyptic number.

It is an amenable number.

7872544 is a deficient number, since it is larger than the sum of its proper divisors (7626590).

7872544 is a wasteful number, since it uses less digits than its factorization.

7872544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246027 (or 246019 counting only the distinct ones).

The product of its digits is 62720, while the sum is 37.

The square root of 7872544 is about 2805.8054102165. The cubic root of 7872544 is about 198.9321755681.

The spelling of 7872544 in words is "seven million, eight hundred seventy-two thousand, five hundred forty-four".