28296455 has 12 divisors (see below), whose sum is σ = 37324056. Its totient is φ = 20578800.

The previous prime is 28296439. The next prime is 28296461. The reversal of 28296455 is 55469282.

It is not a de Polignac number, because 28296455 - 2⁴ = 28296439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22781 + ... + 23990.

It is an arithmetic number, because the mean of its divisors is an integer number (3110338).

Almost surely, 2^28296455 is an apocalyptic number.

28296455 is a deficient number, since it is larger than the sum of its proper divisors (9027601).

28296455 is a wasteful number, since it uses less digits than its factorization.

28296455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46798 (or 46787 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 28296455 is about 5319.4412300541. The cubic root of 28296455 is about 304.7268180073.

The spelling of 28296455 in words is "twenty-eight million, two hundred ninety-six thousand, four hundred fifty-five".