27926561 has 8 divisors (see below), whose sum is σ = 31657920. Its totient is φ = 24421392.

The previous prime is 27926551. The next prime is 27926609. The reversal of 27926561 is 16562972.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27926561 - 2⁶ = 27926497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27926551) 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, 56285 + ... + 56778.

It is an arithmetic number, because the mean of its divisors is an integer number (3957240).

Almost surely, 2^27926561 is an apocalyptic number.

It is an amenable number.

27926561 is a deficient number, since it is larger than the sum of its proper divisors (3731359).

27926561 is a wasteful number, since it uses less digits than its factorization.

27926561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113095.

The product of its digits is 45360, while the sum is 38.

The square root of 27926561 is about 5284.5587327609. The cubic root of 27926561 is about 303.3931837248.

The spelling of 27926561 in words is "twenty-seven million, nine hundred twenty-six thousand, five hundred sixty-one".