27994441 has 4 divisors (see below), whose sum is σ = 28522692. Its totient is φ = 27466192.

The previous prime is 27994433. The next prime is 27994453. The reversal of 27994441 is 14449972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23242041 + 4752400 = 4821^2 + 2180^2 .

It is a cyclic number.

It is not a de Polignac number, because 27994441 - 2³ = 27994433 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 27994394 and 27994403.

It is not an unprimeable number, because it can be changed into a prime (27994411) 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, 264046 + ... + 264151.

It is an arithmetic number, because the mean of its divisors is an integer number (7130673).

Almost surely, 2^27994441 is an apocalyptic number.

It is an amenable number.

27994441 is a deficient number, since it is larger than the sum of its proper divisors (528251).

27994441 is an equidigital number, since it uses as much as digits as its factorization.

27994441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528250.

The product of its digits is 72576, while the sum is 40.

The square root of 27994441 is about 5290.9773199287. The cubic root of 27994441 is about 303.6388001455.

The spelling of 27994441 in words is "twenty-seven million, nine hundred ninety-four thousand, four hundred forty-one".