27279243 has 12 divisors (see below), whose sum is σ = 40320280. Its totient is φ = 17762976.

The previous prime is 27279211. The next prime is 27279247. The reversal of 27279243 is 34297272.

It is not a de Polignac number, because 27279243 - 2⁵ = 27279211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27279198 and 27279207.

It is not an unprimeable number, because it can be changed into a prime (27279247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34858 + ... + 35631.

Almost surely, 2^27279243 is an apocalyptic number.

27279243 is a deficient number, since it is larger than the sum of its proper divisors (13041037).

27279243 is a wasteful number, since it uses less digits than its factorization.

27279243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70538 (or 70535 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 27279243 is about 5222.9534748071. The cubic root of 27279243 is about 301.0306882174.

The spelling of 27279243 in words is "twenty-seven million, two hundred seventy-nine thousand, two hundred forty-three".