28524001 has 4 divisors (see below), whose sum is σ = 31117104. Its totient is φ = 25930900.

The previous prime is 28523993. The next prime is 28524019. The reversal of 28524001 is 10042582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28524001 - 2³ = 28523993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28524031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1296535 + ... + 1296556.

It is an arithmetic number, because the mean of its divisors is an integer number (7779276).

Almost surely, 2^28524001 is an apocalyptic number.

It is an amenable number.

28524001 is a deficient number, since it is larger than the sum of its proper divisors (2593103).

28524001 is a wasteful number, since it uses less digits than its factorization.

28524001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593102.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 28524001 is about 5340.7865525595. The cubic root of 28524001 is about 305.5414586897.

Adding to 28524001 its reverse (10042582), we get a palindrome (38566583).

The spelling of 28524001 in words is "twenty-eight million, five hundred twenty-four thousand, one".