28561027 has 8 divisors (see below), whose sum is σ = 32232240. Its totient is φ = 25068960.

The previous prime is 28561019. The next prime is 28561063. The reversal of 28561027 is 72016582.

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

It is a cyclic number.

It is not a de Polignac number, because 28561027 - 2³ = 28561019 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 28561027.

It is not an unprimeable number, because it can be changed into a prime (28561067) 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, 44448 + ... + 45085.

It is an arithmetic number, because the mean of its divisors is an integer number (4029030).

Almost surely, 2^28561027 is an apocalyptic number.

28561027 is a deficient number, since it is larger than the sum of its proper divisors (3671213).

28561027 is a wasteful number, since it uses less digits than its factorization.

28561027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89573.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 28561027 is about 5344.2517717638. The cubic root of 28561027 is about 305.6736057260.

It can be divided in two parts, 2856 and 1027, that added together give a palindrome (3883).

The spelling of 28561027 in words is "twenty-eight million, five hundred sixty-one thousand, twenty-seven".