2867869 has 2 divisors, whose sum is σ = 2867870. Its totient is φ = 2867868.

The previous prime is 2867867. The next prime is 2867873. The reversal of 2867869 is 9687682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2762244 + 105625 = 1662^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 2867869 - 2¹ = 2867867 is a prime.

It is a super-2 number, since 2×2867869² = 16449345202322, which contains 22 as substring.

Together with 2867867, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2867861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1433934 + 1433935.

It is an arithmetic number, because the mean of its divisors is an integer number (1433935).

2^2867869 is an apocalyptic number.

It is an amenable number.

2867869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2867869 is an equidigital number, since it uses as much as digits as its factorization.

2867869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 2867869 is about 1693.4783730535. The cubic root of 2867869 is about 142.0756886714.

The spelling of 2867869 in words is "two million, eight hundred sixty-seven thousand, eight hundred sixty-nine".