28812064 has 24 divisors (see below), whose sum is σ = 58045680. Its totient is φ = 14070336.

The previous prime is 28812061. The next prime is 28812071. The reversal of 28812064 is 46021882.

It is not an unprimeable number, because it can be changed into a prime (28812061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9094 + ... + 11845.

It is an arithmetic number, because the mean of its divisors is an integer number (2418570).

Almost surely, 2^28812064 is an apocalyptic number.

It is an amenable number.

28812064 is an abundant number, since it is smaller than the sum of its proper divisors (29233616).

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

28812064 is a wasteful number, since it uses less digits than its factorization.

28812064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20992 (or 20984 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 28812064 is about 5367.6870251534. The cubic root of 28812064 is about 306.5665667836.

The spelling of 28812064 in words is "twenty-eight million, eight hundred twelve thousand, sixty-four".