27073261 has 4 divisors (see below), whose sum is σ = 27946624. Its totient is φ = 26199900.

The previous prime is 27073253. The next prime is 27073279. The reversal of 27073261 is 16237072.

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 27073261 - 2³ = 27073253 is a prime.

It is a super-2 number, since 2×27073261² = 1465922922348242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27073661) 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, 436635 + ... + 436696.

It is an arithmetic number, because the mean of its divisors is an integer number (6986656).

Almost surely, 2^27073261 is an apocalyptic number.

It is an amenable number.

27073261 is a deficient number, since it is larger than the sum of its proper divisors (873363).

27073261 is an equidigital number, since it uses as much as digits as its factorization.

27073261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873362.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 27073261 is about 5203.1971901899. The cubic root of 27073261 is about 300.2710919937.

The spelling of 27073261 in words is "twenty-seven million, seventy-three thousand, two hundred sixty-one".