28875064 has 8 divisors (see below), whose sum is σ = 54140760. Its totient is φ = 14437528.

The previous prime is 28875037. The next prime is 28875073. The reversal of 28875064 is 46057882.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804684 + ... + 1804699.

It is an arithmetic number, because the mean of its divisors is an integer number (6767595).

Almost surely, 2^28875064 is an apocalyptic number.

It is an amenable number.

28875064 is a deficient number, since it is larger than the sum of its proper divisors (25265696).

28875064 is a wasteful number, since it uses less digits than its factorization.

28875064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609389 (or 3609385 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 28875064 is about 5373.5522701468. The cubic root of 28875064 is about 306.7898486442.

The spelling of 28875064 in words is "twenty-eight million, eight hundred seventy-five thousand, sixty-four".