28086453 has 24 divisors (see below), whose sum is σ = 42395840. Its totient is φ = 18376200.

The previous prime is 28086451. The next prime is 28086463. The reversal of 28086453 is 35468082.

28086453 is a `hidden beast` number, since 2 + 8 + 0 + 8 + 645 + 3 = 666.

It is not a de Polignac number, because 28086453 - 2¹ = 28086451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185928 + ... + 186078.

Almost surely, 2^28086453 is an apocalyptic number.

It is an amenable number.

28086453 is a deficient number, since it is larger than the sum of its proper divisors (14309387).

28086453 is an equidigital number, since it uses as much as digits as its factorization.

28086453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28086453 is about 5299.6653667944. The cubic root of 28086453 is about 303.9711025452.

It can be divided in two parts, 2808 and 6453, that added together give a cube (9261 = 21³).

The spelling of 28086453 in words is "twenty-eight million, eighty-six thousand, four hundred fifty-three".