27966697 has 8 divisors (see below), whose sum is σ = 30795552. Its totient is φ = 25185600.

The previous prime is 27966677. The next prime is 27966703. The reversal of 27966697 is 79666972.

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

It is not a de Polignac number, because 27966697 - 2⁷ = 27966569 is a prime.

It is a super-2 number, since 2×27966697² = 1564272282179618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27966647) 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, 10704 + ... + 13057.

It is an arithmetic number, because the mean of its divisors is an integer number (3849444).

Almost surely, 2^27966697 is an apocalyptic number.

It is an amenable number.

27966697 is a deficient number, since it is larger than the sum of its proper divisors (2828855).

27966697 is a wasteful number, since it uses less digits than its factorization.

27966697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23879.

The product of its digits is 1714608, while the sum is 52.

The square root of 27966697 is about 5288.3548481546. The cubic root of 27966697 is about 303.5384595179.

The spelling of 27966697 in words is "twenty-seven million, nine hundred sixty-six thousand, six hundred ninety-seven".