27993323 has 8 divisors (see below), whose sum is σ = 30218400. Its totient is φ = 25852288.

The previous prime is 27993313. The next prime is 27993331. The reversal of 27993323 is 32339972.

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 27993323 - 2²² = 23799019 is a prime.

It is a super-2 number, since 2×27993323² = 1567252265164658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27993313) 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, 20318 + ... + 21651.

It is an arithmetic number, because the mean of its divisors is an integer number (3777300).

Almost surely, 2^27993323 is an apocalyptic number.

27993323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

27993323 is a deficient number, since it is larger than the sum of its proper divisors (2225077).

27993323 is a wasteful number, since it uses less digits than its factorization.

27993323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42021.

The product of its digits is 61236, while the sum is 38.

The square root of 27993323 is about 5290.8716673153. The cubic root of 27993323 is about 303.6347580013.

The spelling of 27993323 in words is "twenty-seven million, nine hundred ninety-three thousand, three hundred twenty-three".