2170297 has 4 divisors (see below), whose sum is σ = 2211300. Its totient is φ = 2129296.

The previous prime is 2170291. The next prime is 2170307. The reversal of 2170297 is 7920712.

It is a happy number.

2170297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1279161 + 891136 = 1131^2 + 944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2170297 is a prime.

It is a Duffinian number.

2170297 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2170291) 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, 20422 + ... + 20527.

It is an arithmetic number, because the mean of its divisors is an integer number (552825).

2^2170297 is an apocalyptic number.

It is an amenable number.

2170297 is a deficient number, since it is larger than the sum of its proper divisors (41003).

2170297 is an equidigital number, since it uses as much as digits as its factorization.

2170297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41002.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 2170297 is about 1473.1927911852. The cubic root of 2170297 is about 129.4711652482.

The spelling of 2170297 in words is "two million, one hundred seventy thousand, two hundred ninety-seven".