170911423 has 2 divisors, whose sum is σ = 170911424. Its totient is φ = 170911422.

The previous prime is 170911409. The next prime is 170911427. The reversal of 170911423 is 324119071.

It is a strong prime.

It is an emirp because it is prime and its reverse (324119071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170911423 - 2¹³ = 170903231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 170911391 and 170911400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170911427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85455711 + 85455712.

It is an arithmetic number, because the mean of its divisors is an integer number (85455712).

Almost surely, 2^170911423 is an apocalyptic number.

170911423 is a deficient number, since it is larger than the sum of its proper divisors (1).

170911423 is an equidigital number, since it uses as much as digits as its factorization.

170911423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 170911423 is about 13073.3095656762. The cubic root of 170911423 is about 554.9540562028.

The spelling of 170911423 in words is "one hundred seventy million, nine hundred eleven thousand, four hundred twenty-three".