27768995 has 4 divisors (see below), whose sum is σ = 33322800. Its totient is φ = 22215192.

The previous prime is 27768991. The next prime is 27768997. The reversal of 27768995 is 59986772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27768995 - 2² = 27768991 is a prime.

It is a super-2 number, since 2×27768995² = 1542234166620050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27768991) 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, 2776895 + ... + 2776904.

It is an arithmetic number, because the mean of its divisors is an integer number (8330700).

Almost surely, 2^27768995 is an apocalyptic number.

27768995 is a deficient number, since it is larger than the sum of its proper divisors (5553805).

27768995 is an equidigital number, since it uses as much as digits as its factorization.

27768995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553804.

The product of its digits is 1905120, while the sum is 53.

The square root of 27768995 is about 5269.6294936172. The cubic root of 27768995 is about 302.8215100414.

The spelling of 27768995 in words is "twenty-seven million, seven hundred sixty-eight thousand, nine hundred ninety-five".