27427801 has 2 divisors, whose sum is σ = 27427802. Its totient is φ = 27427800.

The previous prime is 27427793. The next prime is 27427819. The reversal of 27427801 is 10872472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26574025 + 853776 = 5155^2 + 924^2 .

It is a cyclic number.

It is not a de Polignac number, because 27427801 - 2³ = 27427793 is a prime.

It is not a weakly prime, because it can be changed into another prime (27427831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13713900 + 13713901.

It is an arithmetic number, because the mean of its divisors is an integer number (13713901).

Almost surely, 2^27427801 is an apocalyptic number.

It is an amenable number.

27427801 is a deficient number, since it is larger than the sum of its proper divisors (1).

27427801 is an equidigital number, since it uses as much as digits as its factorization.

27427801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 27427801 is about 5237.1558120797. The cubic root of 27427801 is about 301.5761527873.

The spelling of 27427801 in words is "twenty-seven million, four hundred twenty-seven thousand, eight hundred one".