28527000 has 128 divisors (see below), whose sum is σ = 91765440. Its totient is φ = 7372800.

The previous prime is 28526987. The next prime is 28527001. The reversal of 28527000 is 72582.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28527001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110872 + ... + 111128.

Almost surely, 2^28527000 is an apocalyptic number.

28527000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

28527000 is the 3084-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28527000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45882720).

28527000 is an abundant number, since it is smaller than the sum of its proper divisors (63238440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28527000 is a wasteful number, since it uses less digits than its factorization.

28527000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 28527000 is about 5341.0673090685. The cubic root of 28527000 is about 305.5521664760.

Adding to 28527000 its reverse (72582), we get a palindrome (28599582).

The spelling of 28527000 in words is "twenty-eight million, five hundred twenty-seven thousand".