28447675 has 12 divisors (see below), whose sum is σ = 35641816. Its totient is φ = 22521600.

The previous prime is 28447651. The next prime is 28447687. The reversal of 28447675 is 57674482.

It is not a de Polignac number, because 28447675 - 2⁷ = 28447547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3441 + ... + 8290.

Almost surely, 2^28447675 is an apocalyptic number.

28447675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28447675 is a deficient number, since it is larger than the sum of its proper divisors (7194141).

28447675 is a wasteful number, since it uses less digits than its factorization.

28447675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11838 (or 11833 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 28447675 is about 5333.6361893178. The cubic root of 28447675 is about 305.2686873568.

The spelling of 28447675 in words is "twenty-eight million, four hundred forty-seven thousand, six hundred seventy-five".