27993234 has 8 divisors (see below), whose sum is σ = 55986480. Its totient is φ = 9331076.

The previous prime is 27993223. The next prime is 27993263. The reversal of 27993234 is 43239972.

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

27993234 is an admirable number.

It is a super-2 number, since 2×27993234² = 1567242299557512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27993192 and 27993201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2332764 + ... + 2332775.

It is an arithmetic number, because the mean of its divisors is an integer number (6998310).

Almost surely, 2^27993234 is an apocalyptic number.

27993234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27993234 is a wasteful number, since it uses less digits than its factorization.

27993234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665544.

The product of its digits is 81648, while the sum is 39.

The square root of 27993234 is about 5290.8632565962. The cubic root of 27993234 is about 303.6344362160.

The spelling of 27993234 in words is "twenty-seven million, nine hundred ninety-three thousand, two hundred thirty-four".