28485023 has 18 divisors (see below), whose sum is σ = 33908616. Its totient is φ = 23858184.

The previous prime is 28485007. The next prime is 28485029. The reversal of 28485023 is 32058482.

It is not a de Polignac number, because 28485023 - 2⁴ = 28485007 is a prime.

It is a super-2 number, since 2×28485023² = 1622793070621058, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28485029) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 170486 + ... + 170652.

It is an arithmetic number, because the mean of its divisors is an integer number (1883812).

Almost surely, 2^28485023 is an apocalyptic number.

28485023 is a deficient number, since it is larger than the sum of its proper divisors (5423593).

28485023 is an equidigital number, since it uses as much as digits as its factorization.

28485023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 28485023 is about 5337.1362171112. The cubic root of 28485023 is about 305.4022212826.

The spelling of 28485023 in words is "twenty-eight million, four hundred eighty-five thousand, twenty-three".