2172893 has 2 divisors, whose sum is σ = 2172894. Its totient is φ = 2172892.

The previous prime is 2172887. The next prime is 2172901. The reversal of 2172893 is 3982712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1350244 + 822649 = 1162^2 + 907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2172893 - 2⁶ = 2172829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2172803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086446 + 1086447.

It is an arithmetic number, because the mean of its divisors is an integer number (1086447).

2^2172893 is an apocalyptic number.

It is an amenable number.

2172893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172893 is an equidigital number, since it uses as much as digits as its factorization.

2172893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 2172893 is about 1474.0736073887. The cubic root of 2172893 is about 129.5227669755.

The spelling of 2172893 in words is "two million, one hundred seventy-two thousand, eight hundred ninety-three".