28974087 has 6 divisors (see below), whose sum is σ = 41851472. Its totient is φ = 19316052.

The previous prime is 28974079. The next prime is 28974091. The reversal of 28974087 is 78047982.

It is not a de Polignac number, because 28974087 - 2³ = 28974079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28974007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1609663 + ... + 1609680.

Almost surely, 2^28974087 is an apocalyptic number.

28974087 is a deficient number, since it is larger than the sum of its proper divisors (12877385).

28974087 is a wasteful number, since it uses less digits than its factorization.

28974087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219349 (or 3219346 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 28974087 is about 5382.7583077824. The cubic root of 28974087 is about 307.1401461658.

The spelling of 28974087 in words is "twenty-eight million, nine hundred seventy-four thousand, eighty-seven".