27772317 has 6 divisors (see below), whose sum is σ = 40115582. Its totient is φ = 18514872.

The previous prime is 27772313. The next prime is 27772331. The reversal of 27772317 is 71327772.

27772317 is a `hidden beast` number, since 277 + 72 + 317 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27154521 + 617796 = 5211^2 + 786^2 .

It is not a de Polignac number, because 27772317 - 2² = 27772313 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 (27772313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1542898 + ... + 1542915.

Almost surely, 2^27772317 is an apocalyptic number.

It is an amenable number.

27772317 is a deficient number, since it is larger than the sum of its proper divisors (12343265).

27772317 is a wasteful number, since it uses less digits than its factorization.

27772317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085819 (or 3085816 counting only the distinct ones).

The product of its digits is 28812, while the sum is 36.

The square root of 27772317 is about 5269.9446866167. The cubic root of 27772317 is about 302.8335850546.

The spelling of 27772317 in words is "twenty-seven million, seven hundred seventy-two thousand, three hundred seventeen".