8369869 has 2 divisors, whose sum is σ = 8369870. Its totient is φ = 8369868.

The previous prime is 8369849. The next prime is 8369891. The reversal of 8369869 is 9689638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6953769 + 1416100 = 2637^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 8369869 - 2¹³ = 8361677 is a prime.

It is a super-2 number, since 2×8369869² = 140109414154322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8369819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4184934 + 4184935.

It is an arithmetic number, because the mean of its divisors is an integer number (4184935).

Almost surely, 2^8369869 is an apocalyptic number.

It is an amenable number.

8369869 is a deficient number, since it is larger than the sum of its proper divisors (1).

8369869 is an equidigital number, since it uses as much as digits as its factorization.

8369869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 49.

The square root of 8369869 is about 2893.0725880973. The cubic root of 8369869 is about 203.0359243046.

The spelling of 8369869 in words is "eight million, three hundred sixty-nine thousand, eight hundred sixty-nine".