28524679 has 4 divisors (see below), whose sum is σ = 28538784. Its totient is φ = 28510576.

The previous prime is 28524667. The next prime is 28524689. The reversal of 28524679 is 97642582.

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 28524679 - 2²³ = 20136071 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 (28524649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3382 + ... + 8275.

It is an arithmetic number, because the mean of its divisors is an integer number (7134696).

Almost surely, 2^28524679 is an apocalyptic number.

28524679 is a deficient number, since it is larger than the sum of its proper divisors (14105).

28524679 is a wasteful number, since it uses less digits than its factorization.

28524679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14104.

The product of its digits is 241920, while the sum is 43.

The square root of 28524679 is about 5340.8500259790. The cubic root of 28524679 is about 305.5438795220.

It can be divided in two parts, 285 and 24679, that added together give a square (24964 = 158²).

The spelling of 28524679 in words is "twenty-eight million, five hundred twenty-four thousand, six hundred seventy-nine".