27076421 has 4 divisors (see below), whose sum is σ = 27110700. Its totient is φ = 27042144.

The previous prime is 27076417. The next prime is 27076447. The reversal of 27076421 is 12467072.

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 16900321 + 10176100 = 4111^2 + 3190^2 .

It is a cyclic number.

It is not a de Polignac number, because 27076421 - 2² = 27076417 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 (27076411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15926 + ... + 17543.

It is an arithmetic number, because the mean of its divisors is an integer number (6777675).

Almost surely, 2^27076421 is an apocalyptic number.

It is an amenable number.

27076421 is a deficient number, since it is larger than the sum of its proper divisors (34279).

27076421 is an equidigital number, since it uses as much as digits as its factorization.

27076421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34278.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 27076421 is about 5203.5008407802. The cubic root of 27076421 is about 300.2827741197.

The spelling of 27076421 in words is "twenty-seven million, seventy-six thousand, four hundred twenty-one".