27997334 has 8 divisors (see below), whose sum is σ = 44466408. Its totient is φ = 13175200.

The previous prime is 27997331. The next prime is 27997337. The reversal of 27997334 is 43379972.

It is an interprime number because it is at equal distance from previous prime (27997331) and next prime (27997337).

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

It is a super-2 number, since 2×27997334² = 1567701422215112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27997331) 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 3 ways as a sum of consecutive naturals, for example, 411692 + ... + 411759.

It is an arithmetic number, because the mean of its divisors is an integer number (5558301).

Almost surely, 2^27997334 is an apocalyptic number.

27997334 is a deficient number, since it is larger than the sum of its proper divisors (16469074).

27997334 is a wasteful number, since it uses less digits than its factorization.

27997334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823470.

The product of its digits is 285768, while the sum is 44.

The square root of 27997334 is about 5291.2507028112. The cubic root of 27997334 is about 303.6492593267.

The spelling of 27997334 in words is "twenty-seven million, nine hundred ninety-seven thousand, three hundred thirty-four".