170068387 has 4 divisors (see below), whose sum is σ = 175554496. Its totient is φ = 164582280.

The previous prime is 170068351. The next prime is 170068399. The reversal of 170068387 is 783860071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783860071 = 659 ⋅1189469.

It is a cyclic number.

It is not a de Polignac number, because 170068387 - 2¹¹ = 170066339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170066387) 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 in 3 ways as a sum of consecutive naturals, for example, 2743008 + ... + 2743069.

It is an arithmetic number, because the mean of its divisors is an integer number (43888624).

Almost surely, 2^170068387 is an apocalyptic number.

170068387 is a deficient number, since it is larger than the sum of its proper divisors (5486109).

170068387 is an equidigital number, since it uses as much as digits as its factorization.

170068387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5486108.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 170068387 is about 13041.0270684483. The cubic root of 170068387 is about 554.0400981894.

The spelling of 170068387 in words is "one hundred seventy million, sixty-eight thousand, three hundred eighty-seven".