170944997 has 4 divisors (see below), whose sum is σ = 173747436. Its totient is φ = 168142560.

The previous prime is 170944871. The next prime is 170945023. The reversal of 170944997 is 799449071.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44809636 + 126135361 = 6694^2 + 11231^2 .

It is a cyclic number.

It is not a de Polignac number, because 170944997 - 2²⁶ = 103836133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170944297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1401128 + ... + 1401249.

It is an arithmetic number, because the mean of its divisors is an integer number (43436859).

Almost surely, 2^170944997 is an apocalyptic number.

It is an amenable number.

170944997 is a deficient number, since it is larger than the sum of its proper divisors (2802439).

170944997 is an equidigital number, since it uses as much as digits as its factorization.

170944997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802438.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 170944997 is about 13074.5935692089. The cubic root of 170944997 is about 554.9903923884.

The spelling of 170944997 in words is "one hundred seventy million, nine hundred forty-four thousand, nine hundred ninety-seven".