28974607 has 4 divisors (see below), whose sum is σ = 29591136. Its totient is φ = 28358080.

The previous prime is 28974587. The next prime is 28974629. The reversal of 28974607 is 70647982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28974607 - 2⁷ = 28974479 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 (28974697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308194 + ... + 308287.

It is an arithmetic number, because the mean of its divisors is an integer number (7397784).

Almost surely, 2^28974607 is an apocalyptic number.

28974607 is a deficient number, since it is larger than the sum of its proper divisors (616529).

28974607 is an equidigital number, since it uses as much as digits as its factorization.

28974607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616528.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 28974607 is about 5382.8066099387. The cubic root of 28974607 is about 307.1419835768.

The spelling of 28974607 in words is "twenty-eight million, nine hundred seventy-four thousand, six hundred seven".