27339981 has 8 divisors (see below), whose sum is σ = 36488640. Its totient is φ = 18208992.

The previous prime is 27339973. The next prime is 27340007. The reversal of 27339981 is 18993372.

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

It is not a de Polignac number, because 27339981 - 2³ = 27339973 is a prime.

It is a super-2 number, since 2×27339981² = 1494949122160722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27339901) 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, 241 + ... + 7398.

It is an arithmetic number, because the mean of its divisors is an integer number (4561080).

Almost surely, 2^27339981 is an apocalyptic number.

It is an amenable number.

27339981 is a deficient number, since it is larger than the sum of its proper divisors (9148659).

27339981 is a wasteful number, since it uses less digits than its factorization.

27339981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8835.

The product of its digits is 81648, while the sum is 42.

The square root of 27339981 is about 5228.7647680882. The cubic root of 27339981 is about 301.2539403650.

The spelling of 27339981 in words is "twenty-seven million, three hundred thirty-nine thousand, nine hundred eighty-one".