27766965 has 24 divisors (see below), whose sum is σ = 45349920. Its totient is φ = 14507584.

The previous prime is 27766951. The next prime is 27766969. The reversal of 27766965 is 56966772.

It is not a de Polignac number, because 27766965 - 2⁶ = 27766901 is a prime.

It is a super-2 number, since 2×27766965² = 1542008690622450, which contains 22 as substring.

Its product of digits (952560) is a multiple of the sum of its prime divisors (720).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27766969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41806 + ... + 42464.

It is an arithmetic number, because the mean of its divisors is an integer number (1889580).

Almost surely, 2^27766965 is an apocalyptic number.

It is an amenable number.

27766965 is a deficient number, since it is larger than the sum of its proper divisors (17582955).

27766965 is an equidigital number, since it uses as much as digits as its factorization.

27766965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 720 counting only the distinct ones).

The product of its digits is 952560, while the sum is 48.

The square root of 27766965 is about 5269.4368769348. The cubic root of 27766965 is about 302.8141307964.

The spelling of 27766965 in words is "twenty-seven million, seven hundred sixty-six thousand, nine hundred sixty-five".