27968766 has 16 divisors (see below), whose sum is σ = 63928704. Its totient is φ = 7991064.

The previous prime is 27968761. The next prime is 27968767. The reversal of 27968766 is 66786972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27968761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332920 + ... + 333003.

It is an arithmetic number, because the mean of its divisors is an integer number (3995544).

Almost surely, 2^27968766 is an apocalyptic number.

27968766 is an abundant number, since it is smaller than the sum of its proper divisors (35959938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27968766 is a wasteful number, since it uses less digits than its factorization.

27968766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665935.

The product of its digits is 1524096, while the sum is 51.

The square root of 27968766 is about 5288.5504630286. The cubic root of 27968766 is about 303.5459446777.

The spelling of 27968766 in words is "twenty-seven million, nine hundred sixty-eight thousand, seven hundred sixty-six".