27770966 has 4 divisors (see below), whose sum is σ = 41656452. Its totient is φ = 13885482.

The previous prime is 27770957. The next prime is 27770987. The reversal of 27770966 is 66907772.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6942740 + ... + 6942743.

It is an arithmetic number, because the mean of its divisors is an integer number (10414113).

Almost surely, 2^27770966 is an apocalyptic number.

27770966 is a deficient number, since it is larger than the sum of its proper divisors (13885486).

27770966 is a wasteful number, since it uses less digits than its factorization.

27770966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13885485.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 27770966 is about 5269.8165053444. The cubic root of 27770966 is about 302.8286744715.

The spelling of 27770966 in words is "twenty-seven million, seven hundred seventy thousand, nine hundred sixty-six".