27664934 has 16 divisors (see below), whose sum is σ = 45480960. Its totient is φ = 12516360.

The previous prime is 27664921. The next prime is 27664939. The reversal of 27664934 is 43946672.

It is a junction number, because it is equal to n+sod(n) for n = 27664891 and 27664900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27664939) 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, 2087 + ... + 7725.

It is an arithmetic number, because the mean of its divisors is an integer number (2842560).

Almost surely, 2^27664934 is an apocalyptic number.

27664934 is a deficient number, since it is larger than the sum of its proper divisors (17816026).

27664934 is a wasteful number, since it uses less digits than its factorization.

27664934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875.

The product of its digits is 217728, while the sum is 41.

The square root of 27664934 is about 5259.7465718417. The cubic root of 27664934 is about 302.4427740484.

The spelling of 27664934 in words is "twenty-seven million, six hundred sixty-four thousand, nine hundred thirty-four".