2174321 has 2 divisors, whose sum is σ = 2174322. Its totient is φ = 2174320.

The previous prime is 2174299. The next prime is 2174383. The reversal of 2174321 is 1234712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2062096 + 112225 = 1436^2 + 335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2174321 is a prime.

It is a super-2 number, since 2×2174321² = 9455343622082, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2174293 and 2174302.

It is not a weakly prime, because it can be changed into another prime (2170321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087160 + 1087161.

It is an arithmetic number, because the mean of its divisors is an integer number (1087161).

2^2174321 is an apocalyptic number.

It is an amenable number.

2174321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2174321 is an equidigital number, since it uses as much as digits as its factorization.

2174321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 20.

The square root of 2174321 is about 1474.5578998466. The cubic root of 2174321 is about 129.5511343807.

The spelling of 2174321 in words is "two million, one hundred seventy-four thousand, three hundred twenty-one".