2170233 has 28 divisors (see below), whose sum is σ = 3519460. Its totient is φ = 1329696.

The previous prime is 2170229. The next prime is 2170241. The reversal of 2170233 is 3320712.

2170233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1225449 + 944784 = 1107^2 + 972^2 .

It is not a de Polignac number, because 2170233 - 2² = 2170229 is a prime.

It is a super-2 number, since 2×2170233² = 9419822548578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2170213) 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 27 ways as a sum of consecutive naturals, for example, 9363 + ... + 9591.

It is an arithmetic number, because the mean of its divisors is an integer number (125695).

2^2170233 is an apocalyptic number.

It is an amenable number.

2170233 is a deficient number, since it is larger than the sum of its proper divisors (1349227).

2170233 is an equidigital number, since it uses as much as digits as its factorization.

2170233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 2170233 is about 1473.1710694960. The cubic root of 2170233 is about 129.4698925750.

Adding to 2170233 its reverse (3320712), we get a palindrome (5490945).

The spelling of 2170233 in words is "two million, one hundred seventy thousand, two hundred thirty-three".