28275453 has 8 divisors (see below), whose sum is σ = 41889600. Its totient is φ = 18850284.

The previous prime is 28275431. The next prime is 28275461. The reversal of 28275453 is 35457282.

It is not a de Polignac number, because 28275453 - 2⁵ = 28275421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28275413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523593 + ... + 523646.

It is an arithmetic number, because the mean of its divisors is an integer number (5236200).

Almost surely, 2^28275453 is an apocalyptic number.

It is an amenable number.

28275453 is a deficient number, since it is larger than the sum of its proper divisors (13614147).

28275453 is a wasteful number, since it uses less digits than its factorization.

28275453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047248 (or 1047242 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 28275453 is about 5317.4667840994. The cubic root of 28275453 is about 304.6514086007.

The spelling of 28275453 in words is "twenty-eight million, two hundred seventy-five thousand, four hundred fifty-three".