27278341 has 2 divisors, whose sum is σ = 27278342. Its totient is φ = 27278340.

The previous prime is 27278311. The next prime is 27278351. The reversal of 27278341 is 14387272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 910116 = 5135^2 + 954^2 .

It is a cyclic number.

It is not a de Polignac number, because 27278341 - 2⁵ = 27278309 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 27278297 and 27278306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27278311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13639170 + 13639171.

It is an arithmetic number, because the mean of its divisors is an integer number (13639171).

Almost surely, 2^27278341 is an apocalyptic number.

It is an amenable number.

27278341 is a deficient number, since it is larger than the sum of its proper divisors (1).

27278341 is an equidigital number, since it uses as much as digits as its factorization.

27278341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18816, while the sum is 34.

The square root of 27278341 is about 5222.8671244825. The cubic root of 27278341 is about 301.0273702774.

The spelling of 27278341 in words is "twenty-seven million, two hundred seventy-eight thousand, three hundred forty-one".