28442827 has 8 divisors (see below), whose sum is σ = 32541696. Its totient is φ = 24352872.

The previous prime is 28442809. The next prime is 28442831. The reversal of 28442827 is 72824482.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28442827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28442837) 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, 7398 + ... + 10564.

It is an arithmetic number, because the mean of its divisors is an integer number (4067712).

Almost surely, 2^28442827 is an apocalyptic number.

28442827 is a deficient number, since it is larger than the sum of its proper divisors (4098869).

28442827 is a wasteful number, since it uses less digits than its factorization.

28442827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457.

The product of its digits is 57344, while the sum is 37.

The square root of 28442827 is about 5333.1816957610. The cubic root of 28442827 is about 305.2513452638.

It can be divided in two parts, 2844 and 2827, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 28442827 in words is "twenty-eight million, four hundred forty-two thousand, eight hundred twenty-seven".