27293381 has 8 divisors (see below), whose sum is σ = 28946880. Its totient is φ = 25645248.

The previous prime is 27293377. The next prime is 27293389. The reversal of 27293381 is 18339272.

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

It is not a de Polignac number, because 27293381 - 2² = 27293377 is a prime.

It is a super-2 number, since 2×27293381² = 1489857292822322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27293389) 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, 14750 + ... + 16496.

It is an arithmetic number, because the mean of its divisors is an integer number (3618360).

Almost surely, 2^27293381 is an apocalyptic number.

It is an amenable number.

27293381 is a deficient number, since it is larger than the sum of its proper divisors (1653499).

27293381 is a wasteful number, since it uses less digits than its factorization.

27293381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683.

The product of its digits is 18144, while the sum is 35.

The square root of 27293381 is about 5224.3067482681. The cubic root of 27293381 is about 301.0826842452.

The spelling of 27293381 in words is "twenty-seven million, two hundred ninety-three thousand, three hundred eighty-one".