2172701 has 2 divisors, whose sum is σ = 2172702. Its totient is φ = 2172700.

The previous prime is 2172679. The next prime is 2172721. The reversal of 2172701 is 1072712.

It is an a-pointer prime, because the next prime (2172721) can be obtained adding 2172701 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2172676 + 25 = 1474^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 2172701 - 2¹⁴ = 2156317 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 (2172721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086350 + 1086351.

It is an arithmetic number, because the mean of its divisors is an integer number (1086351).

2^2172701 is an apocalyptic number.

It is an amenable number.

2172701 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172701 is an equidigital number, since it uses as much as digits as its factorization.

2172701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 2172701 is about 1474.0084803012. The cubic root of 2172701 is about 129.5189519229.

The spelling of 2172701 in words is "two million, one hundred seventy-two thousand, seven hundred one".