27265421 has 4 divisors (see below), whose sum is σ = 27282144. Its totient is φ = 27248700.

The previous prime is 27265409. The next prime is 27265453. The reversal of 27265421 is 12456272.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 27265421 - 2¹⁰ = 27264397 is a prime.

It is a pancake number, because a pancake can be divided into 27265421 parts by 7384 straight cuts.

It is a Duffinian 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 (27265621) 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, 5615 + ... + 9276.

It is an arithmetic number, because the mean of its divisors is an integer number (6820536).

Almost surely, 2^27265421 is an apocalyptic number.

It is an amenable number.

27265421 is a deficient number, since it is larger than the sum of its proper divisors (16723).

27265421 is a wasteful number, since it uses less digits than its factorization.

27265421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16722.

The product of its digits is 6720, while the sum is 29.

The square root of 27265421 is about 5221.6301094582. The cubic root of 27265421 is about 300.9798369882.

The spelling of 27265421 in words is "twenty-seven million, two hundred sixty-five thousand, four hundred twenty-one".