28704675 has 12 divisors (see below), whose sum is σ = 47458520. Its totient is φ = 15309120.

The previous prime is 28704671. The next prime is 28704677. The reversal of 28704675 is 57640782.

It is not a de Polignac number, because 28704675 - 2² = 28704671 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28704671) 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, 191290 + ... + 191439.

Almost surely, 2^28704675 is an apocalyptic number.

28704675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28704675 is a deficient number, since it is larger than the sum of its proper divisors (18753845).

28704675 is a wasteful number, since it uses less digits than its factorization.

28704675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382742 (or 382737 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 28704675 is about 5357.6744022010. The cubic root of 28704675 is about 306.1852118953.

The spelling of 28704675 in words is "twenty-eight million, seven hundred four thousand, six hundred seventy-five".