28673152 has 32 divisors (see below), whose sum is σ = 60487020. Its totient is φ = 13492224.

The previous prime is 28673143. The next prime is 28673179. The reversal of 28673152 is 25137682.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27290176 + 1382976 = 5224^2 + 1176^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 4413 + ... + 8764.

Almost surely, 2^28673152 is an apocalyptic number.

It is an amenable number.

28673152 is an abundant number, since it is smaller than the sum of its proper divisors (31813868).

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

28673152 is a wasteful number, since it uses less digits than its factorization.

28673152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13208 (or 13196 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 28673152 is about 5354.7317393124. The cubic root of 28673152 is about 306.0730883269.

The spelling of 28673152 in words is "twenty-eight million, six hundred seventy-three thousand, one hundred fifty-two".