172827071 has 2 divisors, whose sum is σ = 172827072. Its totient is φ = 172827070.

The previous prime is 172827041. The next prime is 172827089. The reversal of 172827071 is 170728271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172827071 - 2¹⁰ = 172826047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172827041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86413535 + 86413536.

It is an arithmetic number, because the mean of its divisors is an integer number (86413536).

Almost surely, 2^172827071 is an apocalyptic number.

172827071 is a deficient number, since it is larger than the sum of its proper divisors (1).

172827071 is an equidigital number, since it uses as much as digits as its factorization.

172827071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 172827071 is about 13146.3710201713. The cubic root of 172827071 is about 557.0197447304.

The spelling of 172827071 in words is "one hundred seventy-two million, eight hundred twenty-seven thousand, seventy-one".