28324455 has 16 divisors (see below), whose sum is σ = 45412224. Its totient is φ = 15075360.

The previous prime is 28324411. The next prime is 28324507. The reversal of 28324455 is 55442382.

It is not a de Polignac number, because 28324455 - 2⁸ = 28324199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6912 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (2838264).

Almost surely, 2^28324455 is an apocalyptic number.

28324455 is a deficient number, since it is larger than the sum of its proper divisors (17087769).

28324455 is a wasteful number, since it uses less digits than its factorization.

28324455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3886.

The product of its digits is 38400, while the sum is 33.

The square root of 28324455 is about 5322.0724346818. The cubic root of 28324455 is about 304.8272962961.

The spelling of 28324455 in words is "twenty-eight million, three hundred twenty-four thousand, four hundred fifty-five".