27668670 has 16 divisors (see below), whose sum is σ = 66404880. Its totient is φ = 7378304.

The previous prime is 27668659. The next prime is 27668671. The reversal of 27668670 is 7686672.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27668671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461115 + ... + 461174.

It is an arithmetic number, because the mean of its divisors is an integer number (4150305).

Almost surely, 2^27668670 is an apocalyptic number.

27668670 is an abundant number, since it is smaller than the sum of its proper divisors (38736210).

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

27668670 is a wasteful number, since it uses less digits than its factorization.

27668670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922299.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 27668670 is about 5260.1017100433. The cubic root of 27668670 is about 302.4563878569.

The spelling of 27668670 in words is "twenty-seven million, six hundred sixty-eight thousand, six hundred seventy".