27760231 has 2 divisors, whose sum is σ = 27760232. Its totient is φ = 27760230.

The previous prime is 27760211. The next prime is 27760237. The reversal of 27760231 is 13206772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27760231 - 2¹⁷ = 27629159 is a prime.

It is a super-2 number, since 2×27760231² = 1541260850346722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27760231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27760237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13880115 + 13880116.

It is an arithmetic number, because the mean of its divisors is an integer number (13880116).

Almost surely, 2^27760231 is an apocalyptic number.

27760231 is a deficient number, since it is larger than the sum of its proper divisors (1).

27760231 is an equidigital number, since it uses as much as digits as its factorization.

27760231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 27760231 is about 5268.7978704824. The cubic root of 27760231 is about 302.7896494842.

The spelling of 27760231 in words is "twenty-seven million, seven hundred sixty thousand, two hundred thirty-one".