28789527 has 16 divisors (see below), whose sum is σ = 41731200. Its totient is φ = 17548512.

The previous prime is 28789511. The next prime is 28789531. The reversal of 28789527 is 72598782.

It is not a de Polignac number, because 28789527 - 2⁴ = 28789511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28789567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724 + ... + 7622.

It is an arithmetic number, because the mean of its divisors is an integer number (2608200).

Almost surely, 2^28789527 is an apocalyptic number.

28789527 is a deficient number, since it is larger than the sum of its proper divisors (12941673).

28789527 is a wasteful number, since it uses less digits than its factorization.

28789527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022.

The product of its digits is 564480, while the sum is 48.

The square root of 28789527 is about 5365.5872931115. The cubic root of 28789527 is about 306.4866130884.

The spelling of 28789527 in words is "twenty-eight million, seven hundred eighty-nine thousand, five hundred twenty-seven".