27661922 has 6 divisors (see below), whose sum is σ = 41504043. Its totient is φ = 13827242.

The previous prime is 27661913. The next prime is 27661979. The reversal of 27661922 is 22916672.

It can be written as a sum of positive squares in only one way, i.e., 13830961 + 13830961 = 3719^2 + 3719^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3719.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5579 + ... + 9297.

Almost surely, 2^27661922 is an apocalyptic number.

27661922 is a deficient number, since it is larger than the sum of its proper divisors (13842121).

27661922 is an frugal number, since it uses more digits than its factorization.

27661922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7440 (or 3721 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 27661922 is about 5259.4602384655. The cubic root of 27661922 is about 302.4317975694.

The spelling of 27661922 in words is "twenty-seven million, six hundred sixty-one thousand, nine hundred twenty-two".