28182827 has 4 divisors (see below), whose sum is σ = 28226640. Its totient is φ = 28139016.

The previous prime is 28182823. The next prime is 28182839. The reversal of 28182827 is 72828182.

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 28182827 - 2² = 28182823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28182823) 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, 20927 + ... + 22232.

It is an arithmetic number, because the mean of its divisors is an integer number (7056660).

Almost surely, 2^28182827 is an apocalyptic number.

28182827 is a deficient number, since it is larger than the sum of its proper divisors (43813).

28182827 is an equidigital number, since it uses as much as digits as its factorization.

28182827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43812.

The product of its digits is 28672, while the sum is 38.

The square root of 28182827 is about 5308.7500412056. The cubic root of 28182827 is about 304.3183810937.

The spelling of 28182827 in words is "twenty-eight million, one hundred eighty-two thousand, eight hundred twenty-seven".