28933065 has 64 divisors (see below), whose sum is σ = 62277120. Its totient is φ = 12441600.

The previous prime is 28933061. The next prime is 28933117. The reversal of 28933065 is 56033982.

It is not a de Polignac number, because 28933065 - 2² = 28933061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28933061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15165 + ... + 16965.

It is an arithmetic number, because the mean of its divisors is an integer number (973080).

Almost surely, 2^28933065 is an apocalyptic number.

It is an amenable number.

28933065 is an abundant number, since it is smaller than the sum of its proper divisors (33344055).

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

28933065 is a wasteful number, since it uses less digits than its factorization.

28933065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 28933065 is about 5378.9464581831. The cubic root of 28933065 is about 306.9951263077.

The spelling of 28933065 in words is "twenty-eight million, nine hundred thirty-three thousand, sixty-five".