2162869 has 2 divisors, whose sum is σ = 2162870. Its totient is φ = 2162868.

The previous prime is 2162843. The next prime is 2162879. The reversal of 2162869 is 9682612.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 22500 = 1463^2 + 150^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162869 - 2¹⁵ = 2130101 is a prime.

It is a super-2 number, since 2×2162869² = 9356004622322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2162879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081434 + 1081435.

It is an arithmetic number, because the mean of its divisors is an integer number (1081435).

2^2162869 is an apocalyptic number.

It is an amenable number.

2162869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162869 is an equidigital number, since it uses as much as digits as its factorization.

2162869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 2162869 is about 1470.6695753975. The cubic root of 2162869 is about 129.3232882398.

The spelling of 2162869 in words is "two million, one hundred sixty-two thousand, eight hundred sixty-nine".