28852749 has 12 divisors (see below), whose sum is σ = 42006016. Its totient is φ = 19082952.

The previous prime is 28852729. The next prime is 28852753. The reversal of 28852749 is 94725882.

28852749 is a `hidden beast` number, since 2 + 88 + 527 + 49 = 666.

It is not a de Polignac number, because 28852749 - 2⁸ = 28852493 is a prime.

It is a super-2 number, since 2×28852749² = 1664962249714002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28852729) 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, 11479 + ... + 13764.

Almost surely, 2^28852749 is an apocalyptic number.

It is an amenable number.

28852749 is a deficient number, since it is larger than the sum of its proper divisors (13153267).

28852749 is a wasteful number, since it uses less digits than its factorization.

28852749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25376 (or 25373 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 28852749 is about 5371.4754956157. The cubic root of 28852749 is about 306.7107979705.

The spelling of 28852749 in words is "twenty-eight million, eight hundred fifty-two thousand, seven hundred forty-nine".