28046275 has 24 divisors (see below), whose sum is σ = 36118224. Its totient is φ = 21590400.

The previous prime is 28046251. The next prime is 28046279. The reversal of 28046275 is 57264082.

It is not a de Polignac number, because 28046275 - 2²³ = 19657667 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28046275.

It is not an unprimeable number, because it can be changed into a prime (28046279) 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, 80652 + ... + 80998.

It is an arithmetic number, because the mean of its divisors is an integer number (1504926).

Almost surely, 2^28046275 is an apocalyptic number.

28046275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28046275 is a deficient number, since it is larger than the sum of its proper divisors (8071949).

28046275 is a wasteful number, since it uses less digits than its factorization.

28046275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28046275 is about 5295.8733935018. The cubic root of 28046275 is about 303.8260886343.

The spelling of 28046275 in words is "twenty-eight million, forty-six thousand, two hundred seventy-five".