2172323 has 2 divisors, whose sum is σ = 2172324. Its totient is φ = 2172322.

The previous prime is 2172283. The next prime is 2172337. The reversal of 2172323 is 3232712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2172323 - 2⁸ = 2172067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2172295 and 2172304.

It is not a weakly prime, because it can be changed into another prime (2172343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086161 + 1086162.

It is an arithmetic number, because the mean of its divisors is an integer number (1086162).

2^2172323 is an apocalyptic number.

2172323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172323 is an equidigital number, since it uses as much as digits as its factorization.

2172323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 20.

The square root of 2172323 is about 1473.8802529378. The cubic root of 2172323 is about 129.5114403810.

The spelling of 2172323 in words is "two million, one hundred seventy-two thousand, three hundred twenty-three".