28986475 has 24 divisors (see below), whose sum is σ = 41659040. Its totient is φ = 19595520.

The previous prime is 28986473. The next prime is 28986481. The reversal of 28986475 is 57468982.

It is not a de Polignac number, because 28986475 - 2¹ = 28986473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28986473) 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, 11641 + ... + 13909.

Almost surely, 2^28986475 is an apocalyptic number.

28986475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28986475 is a deficient number, since it is larger than the sum of its proper divisors (12672565).

28986475 is a wasteful number, since it uses less digits than its factorization.

28986475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2354 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 28986475 is about 5383.9088959603. The cubic root of 28986475 is about 307.1839129748.

The spelling of 28986475 in words is "twenty-eight million, nine hundred eighty-six thousand, four hundred seventy-five".