28894572 has 36 divisors (see below), whose sum is σ = 83473936. Its totient is φ = 8255520.

The previous prime is 28894571. The next prime is 28894589. The reversal of 28894572 is 27549882.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (28894571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57079 + ... + 57582.

Almost surely, 2^28894572 is an apocalyptic number.

It is an amenable number.

28894572 is an abundant number, since it is smaller than the sum of its proper divisors (54579364).

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

28894572 is a wasteful number, since it uses less digits than its factorization.

28894572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114678 (or 114673 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 28894572 is about 5375.3671502512. The cubic root of 28894572 is about 306.8589221891.

The spelling of 28894572 in words is "twenty-eight million, eight hundred ninety-four thousand, five hundred seventy-two".