28974475 has 12 divisors (see below), whose sum is σ = 36765256. Its totient is φ = 22639680.

The previous prime is 28974469. The next prime is 28974479. The reversal of 28974475 is 57447982.

It is not a de Polignac number, because 28974475 - 2³ = 28974467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28974479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12402 + ... + 14551.

Almost surely, 2^28974475 is an apocalyptic number.

28974475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28974475 is a deficient number, since it is larger than the sum of its proper divisors (7790781).

28974475 is a wasteful number, since it uses less digits than its factorization.

28974475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27006 (or 27001 counting only the distinct ones).

The product of its digits is 564480, while the sum is 46.

The square root of 28974475 is about 5382.7943486632. The cubic root of 28974475 is about 307.1415171592.

The spelling of 28974475 in words is "twenty-eight million, nine hundred seventy-four thousand, four hundred seventy-five".