27269021 has 4 divisors (see below), whose sum is σ = 29366652. Its totient is φ = 25171392.

The previous prime is 27268999. The next prime is 27269023. The reversal of 27269021 is 12096272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15912121 + 11356900 = 3989^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 27269021 - 2⁶ = 27268957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27269023) 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, 1048796 + ... + 1048821.

It is an arithmetic number, because the mean of its divisors is an integer number (7341663).

Almost surely, 2^27269021 is an apocalyptic number.

It is an amenable number.

27269021 is a deficient number, since it is larger than the sum of its proper divisors (2097631).

27269021 is a wasteful number, since it uses less digits than its factorization.

27269021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097630.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 27269021 is about 5221.9748180166. The cubic root of 27269021 is about 300.9930830668.

The spelling of 27269021 in words is "twenty-seven million, two hundred sixty-nine thousand, twenty-one".