8867869 has 2 divisors, whose sum is σ = 8867870. Its totient is φ = 8867868.

The previous prime is 8867861. The next prime is 8867893. The reversal of 8867869 is 9687688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8323225 + 544644 = 2885^2 + 738^2 .

It is a cyclic number.

It is not a de Polignac number, because 8867869 - 2³ = 8867861 is a prime.

It is a super-2 number, since 2×8867869² = 157278201202322, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8867861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4433934 + 4433935.

It is an arithmetic number, because the mean of its divisors is an integer number (4433935).

Almost surely, 2^8867869 is an apocalyptic number.

It is an amenable number.

8867869 is a deficient number, since it is larger than the sum of its proper divisors (1).

8867869 is an equidigital number, since it uses as much as digits as its factorization.

8867869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The square root of 8867869 is about 2977.8967409902. The cubic root of 8867869 is about 206.9854206477.

The spelling of 8867869 in words is "eight million, eight hundred sixty-seven thousand, eight hundred sixty-nine".