27244681 has 8 divisors (see below), whose sum is σ = 27716360. Its totient is φ = 26777088.

The previous prime is 27244669. The next prime is 27244697. The reversal of 27244681 is 18644272.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7075600 + 20169081 = 2660^2 + 4491^2 .

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 27244681 - 2¹⁵ = 27211913 is a prime.

It is a super-2 number, since 2×27244681² = 1484545285583522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27244181) 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, 14335 + ... + 16123.

It is an arithmetic number, because the mean of its divisors is an integer number (3464545).

Almost surely, 2^27244681 is an apocalyptic number.

It is an amenable number.

27244681 is a deficient number, since it is larger than the sum of its proper divisors (471679).

27244681 is a wasteful number, since it uses less digits than its factorization.

27244681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043.

The product of its digits is 21504, while the sum is 34.

The square root of 27244681 is about 5219.6437617906. The cubic root of 27244681 is about 300.9035021406.

The spelling of 27244681 in words is "twenty-seven million, two hundred forty-four thousand, six hundred eighty-one".