27612401 has 2 divisors, whose sum is σ = 27612402. Its totient is φ = 27612400.

The previous prime is 27612391. The next prime is 27612419. The reversal of 27612401 is 10421672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14070001 + 13542400 = 3751^2 + 3680^2 .

It is a cyclic number.

It is not a de Polignac number, because 27612401 - 2¹⁴ = 27596017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (27612451) 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 as a sum of consecutive naturals, namely, 13806200 + 13806201.

It is an arithmetic number, because the mean of its divisors is an integer number (13806201).

Almost surely, 2^27612401 is an apocalyptic number.

It is an amenable number.

27612401 is a deficient number, since it is larger than the sum of its proper divisors (1).

27612401 is an equidigital number, since it uses as much as digits as its factorization.

27612401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 27612401 is about 5254.7503270850. The cubic root of 27612401 is about 302.2512163458.

The spelling of 27612401 in words is "twenty-seven million, six hundred twelve thousand, four hundred one".