28867572 has 36 divisors (see below), whose sum is σ = 75327616. Its totient is φ = 9311760.

The previous prime is 28867571. The next prime is 28867591. The reversal of 28867572 is 27576882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28867571) 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, 11818 + ... + 14049.

Almost surely, 2^28867572 is an apocalyptic number.

It is an amenable number.

28867572 is an abundant number, since it is smaller than the sum of its proper divisors (46460044).

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

28867572 is a wasteful number, since it uses less digits than its factorization.

28867572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25908 (or 25903 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 28867572 is about 5372.8551069241. The cubic root of 28867572 is about 306.7633128489.

The spelling of 28867572 in words is "twenty-eight million, eight hundred sixty-seven thousand, five hundred seventy-two".