27880243 has 2 divisors, whose sum is σ = 27880244. Its totient is φ = 27880242.

The previous prime is 27880231. The next prime is 27880247. The reversal of 27880243 is 34208872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27880243 - 2¹³ = 27872051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27880199 and 27880208.

It is not a weakly prime, because it can be changed into another prime (27880247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13940121 + 13940122.

It is an arithmetic number, because the mean of its divisors is an integer number (13940122).

Almost surely, 2^27880243 is an apocalyptic number.

27880243 is a deficient number, since it is larger than the sum of its proper divisors (1).

27880243 is an equidigital number, since it uses as much as digits as its factorization.

27880243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 27880243 is about 5280.1745236308. The cubic root of 27880243 is about 303.2253585293.

The spelling of 27880243 in words is "twenty-seven million, eight hundred eighty thousand, two hundred forty-three".