28463272 has 16 divisors (see below), whose sum is σ = 53478900. Its totient is φ = 14202240.

The previous prime is 28463269. The next prime is 28463293. The reversal of 28463272 is 27236482.

It can be written as a sum of positive squares in 2 ways, for example, as 28238596 + 224676 = 5314^2 + 474^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754 + ... + 7582.

Almost surely, 2^28463272 is an apocalyptic number.

It is an amenable number.

28463272 is a deficient number, since it is larger than the sum of its proper divisors (25015628).

28463272 is a wasteful number, since it uses less digits than its factorization.

28463272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7356 (or 7352 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 28463272 is about 5335.0981246834. The cubic root of 28463272 is about 305.3244670275.

The spelling of 28463272 in words is "twenty-eight million, four hundred sixty-three thousand, two hundred seventy-two".