869299 has 2 divisors, whose sum is σ = 869300. Its totient is φ = 869298.

The previous prime is 869293. The next prime is 869303. The reversal of 869299 is 992968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 869299 - 2³ = 869291 is a prime.

869299 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (869291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434649 + 434650.

It is an arithmetic number, because the mean of its divisors is an integer number (434650).

2⁸⁶⁹²⁹⁹ is an apocalyptic number.

869299 is a deficient number, since it is larger than the sum of its proper divisors (1).

869299 is an equidigital number, since it uses as much as digits as its factorization.

869299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 43.

The square root of 869299 is about 932.3620541399. The cubic root of 869299 is about 95.4383802489.

The spelling of 869299 in words is "eight hundred sixty-nine thousand, two hundred ninety-nine".