28487064 has 32 divisors (see below), whose sum is σ = 74315520. Its totient is φ = 9082656.

The previous prime is 28487059. The next prime is 28487083. The reversal of 28487064 is 46078482.

It is a congruent number.

It is an unprimeable number.

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, 25252 + ... + 26355.

It is an arithmetic number, because the mean of its divisors is an integer number (2322360).

Almost surely, 2^28487064 is an apocalyptic number.

28487064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28487064 is an abundant number, since it is smaller than the sum of its proper divisors (45828456).

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

28487064 is a wasteful number, since it uses less digits than its factorization.

28487064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51639 (or 51635 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 28487064 is about 5337.3274210976. The cubic root of 28487064 is about 305.4095153033.

The spelling of 28487064 in words is "twenty-eight million, four hundred eighty-seven thousand, sixty-four".