28500527 has 8 divisors (see below), whose sum is σ = 31556352. Its totient is φ = 25522200.

The previous prime is 28500523. The next prime is 28500541. The reversal of 28500527 is 72500582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28500527 - 2² = 28500523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28500527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28500523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18599 + ... + 20072.

It is an arithmetic number, because the mean of its divisors is an integer number (3944544).

Almost surely, 2^28500527 is an apocalyptic number.

28500527 is a deficient number, since it is larger than the sum of its proper divisors (3055825).

28500527 is a wasteful number, since it uses less digits than its factorization.

28500527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38749.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 28500527 is about 5338.5884838598. The cubic root of 28500527 is about 305.4576199534.

The spelling of 28500527 in words is "twenty-eight million, five hundred thousand, five hundred twenty-seven".