27697973 has 8 divisors (see below), whose sum is σ = 28654080. Its totient is φ = 26745840.

The previous prime is 27697961. The next prime is 27697979. The reversal of 27697973 is 37979672.

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 27697973 - 2⁶ = 27697909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27697979) 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, 21923 + ... + 23151.

It is an arithmetic number, because the mean of its divisors is an integer number (3581760).

Almost surely, 2^27697973 is an apocalyptic number.

It is an amenable number.

27697973 is a deficient number, since it is larger than the sum of its proper divisors (956107).

27697973 is a wasteful number, since it uses less digits than its factorization.

27697973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987.

The product of its digits is 1000188, while the sum is 50.

The square root of 27697973 is about 5262.8863753648. The cubic root of 27697973 is about 302.5631241351.

The spelling of 27697973 in words is "twenty-seven million, six hundred ninety-seven thousand, nine hundred seventy-three".