27220807 has 2 divisors, whose sum is σ = 27220808. Its totient is φ = 27220806.

The previous prime is 27220777. The next prime is 27220829. The reversal of 27220807 is 70802272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27220807 - 2¹¹ = 27218759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27220877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13610403 + 13610404.

It is an arithmetic number, because the mean of its divisors is an integer number (13610404).

Almost surely, 2^27220807 is an apocalyptic number.

27220807 is a deficient number, since it is larger than the sum of its proper divisors (1).

27220807 is an equidigital number, since it uses as much as digits as its factorization.

27220807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 27220807 is about 5217.3563228900. The cubic root of 27220807 is about 300.8155844345.

The spelling of 27220807 in words is "twenty-seven million, two hundred twenty thousand, eight hundred seven".