7889472 has 42 divisors (see below), whose sum is σ = 22615398. Its totient is φ = 2629632.

The previous prime is 7889471. The next prime is 7889477. The reversal of 7889472 is 2749887.

It can be written as a sum of positive squares in only one way, i.e., 4562496 + 3326976 = 2136^2 + 1824^2 .

It is not an unprimeable number, because it can be changed into a prime (7889471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6273 + ... + 7424.

Almost surely, 2^7889472 is an apocalyptic number.

7889472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7889472 is an abundant number, since it is smaller than the sum of its proper divisors (14725926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7889472 is a wasteful number, since it uses less digits than its factorization.

7889472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13715 (or 13702 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 7889472 is about 2808.8203929764. The cubic root of 7889472 is about 199.0746586530.

The spelling of 7889472 in words is "seven million, eight hundred eighty-nine thousand, four hundred seventy-two".