28966455 has 24 divisors (see below), whose sum is σ = 57381792. Its totient is φ = 13241664.

The previous prime is 28966417. The next prime is 28966471. The reversal of 28966455 is 55466982.

It is not a de Polignac number, because 28966455 - 2⁸ = 28966199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28966455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45664 + ... + 46293.

It is an arithmetic number, because the mean of its divisors is an integer number (2390908).

Almost surely, 2^28966455 is an apocalyptic number.

28966455 is a deficient number, since it is larger than the sum of its proper divisors (28415337).

28966455 is a wasteful number, since it uses less digits than its factorization.

28966455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91975 (or 91972 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 28966455 is about 5382.0493308776. The cubic root of 28966455 is about 307.1131760960.

The spelling of 28966455 in words is "twenty-eight million, nine hundred sixty-six thousand, four hundred fifty-five".