170420267 has 2 divisors, whose sum is σ = 170420268. Its totient is φ = 170420266.

The previous prime is 170420233. The next prime is 170420273. The reversal of 170420267 is 762024071.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 170420267 - 2⁸ = 170420011 is a prime.

It is not a weakly prime, because it can be changed into another prime (170420287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85210133 + 85210134.

It is an arithmetic number, because the mean of its divisors is an integer number (85210134).

Almost surely, 2^170420267 is an apocalyptic number.

170420267 is a deficient number, since it is larger than the sum of its proper divisors (1).

170420267 is an equidigital number, since it uses as much as digits as its factorization.

170420267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 170420267 is about 13054.5113658076. The cubic root of 170420267 is about 554.4219471814.

The spelling of 170420267 in words is "one hundred seventy million, four hundred twenty thousand, two hundred sixty-seven".