2172733 has 2 divisors, whose sum is σ = 2172734. Its totient is φ = 2172732.

The previous prime is 2172727. The next prime is 2172761. The reversal of 2172733 is 3372712.

2172733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1734489 + 438244 = 1317^2 + 662^2 .

It is a cyclic number.

It is not a de Polignac number, because 2172733 - 2⁵ = 2172701 is a prime.

2172733 is a lucky number.

It is equal to p₁₆₀₈₁₉ and since 2172733 and 160819 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 2172698 and 2172707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2172773) 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, 1086366 + 1086367.

It is an arithmetic number, because the mean of its divisors is an integer number (1086367).

2^2172733 is an apocalyptic number.

It is an amenable number.

2172733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172733 is an equidigital number, since it uses as much as digits as its factorization.

2172733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764, while the sum is 25.

The square root of 2172733 is about 1474.0193350157. The cubic root of 2172733 is about 129.5195877806.

The spelling of 2172733 in words is "two million, one hundred seventy-two thousand, seven hundred thirty-three".