27725671 has 2 divisors, whose sum is σ = 27725672. Its totient is φ = 27725670.

The previous prime is 27725651. The next prime is 27725681. The reversal of 27725671 is 17652772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27725671 - 2⁵ = 27725639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27725671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27725641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13862835 + 13862836.

It is an arithmetic number, because the mean of its divisors is an integer number (13862836).

Almost surely, 2^27725671 is an apocalyptic number.

27725671 is a deficient number, since it is larger than the sum of its proper divisors (1).

27725671 is an equidigital number, since it uses as much as digits as its factorization.

27725671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41160, while the sum is 37.

The square root of 27725671 is about 5265.5171635842. The cubic root of 27725671 is about 302.6639450086.

The spelling of 27725671 in words is "twenty-seven million, seven hundred twenty-five thousand, six hundred seventy-one".