28624672 has 12 divisors (see below), whose sum is σ = 56354886. Its totient is φ = 14312320.

The previous prime is 28624669. The next prime is 28624681. The reversal of 28624672 is 27642682.

It can be written as a sum of positive squares in only one way, i.e., 28259856 + 364816 = 5316^2 + 604^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447229 + ... + 447292.

Almost surely, 2^28624672 is an apocalyptic number.

It is an amenable number.

28624672 is a deficient number, since it is larger than the sum of its proper divisors (27730214).

28624672 is an equidigital number, since it uses as much as digits as its factorization.

28624672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894531 (or 894523 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 28624672 is about 5350.2029868034. The cubic root of 28624672 is about 305.9004902344.

The spelling of 28624672 in words is "twenty-eight million, six hundred twenty-four thousand, six hundred seventy-two".