28604072 has 32 divisors (see below), whose sum is σ = 63275520. Its totient is φ = 11862720.

The previous prime is 28604033. The next prime is 28604077. The reversal of 28604072 is 27040682.

It is not an unprimeable number, because it can be changed into a prime (28604077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6503 + ... + 9974.

It is an arithmetic number, because the mean of its divisors is an integer number (1977360).

Almost surely, 2^28604072 is an apocalyptic number.

It is an amenable number.

28604072 is an abundant number, since it is smaller than the sum of its proper divisors (34671448).

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

28604072 is a wasteful number, since it uses less digits than its factorization.

28604072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16521 (or 16517 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28604072 is about 5348.2774797125. The cubic root of 28604072 is about 305.8270912873.

The spelling of 28604072 in words is "twenty-eight million, six hundred four thousand, seventy-two".