27828837 has 6 divisors (see below), whose sum is σ = 40197222. Its totient is φ = 18552552.

The previous prime is 27828809. The next prime is 27828883. The reversal of 27828837 is 73882872.

It can be written as a sum of positive squares in only one way, i.e., 27029601 + 799236 = 5199^2 + 894^2 .

It is not a de Polignac number, because 27828837 - 2¹⁴ = 27812453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27828792 and 27828801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27828887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1546038 + ... + 1546055.

It is an arithmetic number, because the mean of its divisors is an integer number (6699537).

Almost surely, 2^27828837 is an apocalyptic number.

It is an amenable number.

27828837 is a deficient number, since it is larger than the sum of its proper divisors (12368385).

27828837 is a wasteful number, since it uses less digits than its factorization.

27828837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092099 (or 3092096 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 27828837 is about 5275.3044461908. The cubic root of 27828837 is about 303.0388800874.

The spelling of 27828837 in words is "twenty-seven million, eight hundred twenty-eight thousand, eight hundred thirty-seven".