27311893 has 8 divisors (see below), whose sum is σ = 31248000. Its totient is φ = 23384400.

The previous prime is 27311891. The next prime is 27311903. The reversal of 27311893 is 39811372.

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 27311893 - 2¹ = 27311891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27311891) 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 7 ways as a sum of consecutive naturals, for example, 7608 + ... + 10606.

It is an arithmetic number, because the mean of its divisors is an integer number (3906000).

Almost surely, 2^27311893 is an apocalyptic number.

It is an amenable number.

27311893 is a deficient number, since it is larger than the sum of its proper divisors (3936107).

27311893 is a wasteful number, since it uses less digits than its factorization.

27311893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307.

The product of its digits is 9072, while the sum is 34.

The square root of 27311893 is about 5226.0781662734. The cubic root of 27311893 is about 301.1507396100.

It can be divided in two parts, 2731 and 1893, that added together give a square (4624 = 68²).

The spelling of 27311893 in words is "twenty-seven million, three hundred eleven thousand, eight hundred ninety-three".