27764073 has 16 divisors (see below), whose sum is σ = 43297600. Its totient is φ = 17534880.

The previous prime is 27764069. The next prime is 27764083. The reversal of 27764073 is 37046772.

27764073 is a `hidden beast` number, since 2 + 7 + 7 + 640 + 7 + 3 = 666.

It is not a de Polignac number, because 27764073 - 2² = 27764069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27764083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26548 + ... + 27573.

It is an arithmetic number, because the mean of its divisors is an integer number (2706100).

Almost surely, 2^27764073 is an apocalyptic number.

It is an amenable number.

27764073 is a deficient number, since it is larger than the sum of its proper divisors (15533527).

27764073 is a wasteful number, since it uses less digits than its factorization.

27764073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54149 (or 54143 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 27764073 is about 5269.1624571653. The cubic root of 27764073 is about 302.8036174776.

The spelling of 27764073 in words is "twenty-seven million, seven hundred sixty-four thousand, seventy-three".