28486575 has 36 divisors (see below), whose sum is σ = 54953080. Its totient is φ = 14022720.

The previous prime is 28486561. The next prime is 28486583. The reversal of 28486575 is 57568482.

It is not a de Polignac number, because 28486575 - 2⁹ = 28486063 is a prime.

It is a super-2 number, since 2×28486575² = 1622969910461250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 28486575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1945 + ... + 7794.

Almost surely, 2^28486575 is an apocalyptic number.

28486575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28486575 is a deficient number, since it is larger than the sum of its proper divisors (26466505).

28486575 is a wasteful number, since it uses less digits than its factorization.

28486575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9768 (or 9760 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 28486575 is about 5337.2816114573. The cubic root of 28486575 is about 305.4077677720.

The spelling of 28486575 in words is "twenty-eight million, four hundred eighty-six thousand, five hundred seventy-five".