27117973 has 4 divisors (see below), whose sum is σ = 27371520. Its totient is φ = 26864428.

The previous prime is 27117949. The next prime is 27117983. The reversal of 27117973 is 37971172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27117973 - 2¹⁷ = 26986901 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 (27117913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126613 + ... + 126826.

It is an arithmetic number, because the mean of its divisors is an integer number (6842880).

Almost surely, 2^27117973 is an apocalyptic number.

It is an amenable number.

27117973 is a deficient number, since it is larger than the sum of its proper divisors (253547).

27117973 is a wasteful number, since it uses less digits than its factorization.

27117973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253546.

The product of its digits is 18522, while the sum is 37.

The square root of 27117973 is about 5207.4920067149. The cubic root of 27117973 is about 300.4363021974.

The spelling of 27117973 in words is "twenty-seven million, one hundred seventeen thousand, nine hundred seventy-three".