27369421 has 2 divisors, whose sum is σ = 27369422. Its totient is φ = 27369420.

The previous prime is 27369413. The next prime is 27369431. The reversal of 27369421 is 12496372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24147396 + 3222025 = 4914^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 27369421 - 2³ = 27369413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27369431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13684710 + 13684711.

It is an arithmetic number, because the mean of its divisors is an integer number (13684711).

Almost surely, 2^27369421 is an apocalyptic number.

It is an amenable number.

27369421 is a deficient number, since it is larger than the sum of its proper divisors (1).

27369421 is an equidigital number, since it uses as much as digits as its factorization.

27369421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 27369421 is about 5231.5792070846. The cubic root of 27369421 is about 301.3620327898.

The spelling of 27369421 in words is "twenty-seven million, three hundred sixty-nine thousand, four hundred twenty-one".