27266961 has 4 divisors (see below), whose sum is σ = 36355952. Its totient is φ = 18177972.

The previous prime is 27266951. The next prime is 27266977. The reversal of 27266961 is 16966272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27266961 - 2¹⁰ = 27265937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27266951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4544491 + ... + 4544496.

It is an arithmetic number, because the mean of its divisors is an integer number (9088988).

Almost surely, 2^27266961 is an apocalyptic number.

It is an amenable number.

27266961 is a deficient number, since it is larger than the sum of its proper divisors (9088991).

27266961 is an equidigital number, since it uses as much as digits as its factorization.

27266961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088990.

The product of its digits is 54432, while the sum is 39.

The square root of 27266961 is about 5221.7775709044. Note that the first 3 decimals coincide. The cubic root of 27266961 is about 300.9855035089.

The spelling of 27266961 in words is "twenty-seven million, two hundred sixty-six thousand, nine hundred sixty-one".