869222969 has 4 divisors (see below), whose sum is σ = 907015296. Its totient is φ = 831430644.

The previous prime is 869222957. The next prime is 869222983. The reversal of 869222969 is 969222968.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 869222969 - 2²⁰ = 868174393 is a prime.

It is a super-2 number, since 2×869222969² = 1511097139674349922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 869222969.

It is not an unprimeable number, because it can be changed into a prime (869222909) 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 in 3 ways as a sum of consecutive naturals, for example, 18896129 + ... + 18896174.

It is an arithmetic number, because the mean of its divisors is an integer number (226753824).

Almost surely, 2^869222969 is an apocalyptic number.

It is an amenable number.

869222969 is a deficient number, since it is larger than the sum of its proper divisors (37792327).

869222969 is a wasteful number, since it uses less digits than its factorization.

869222969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37792326.

The product of its digits is 1679616, while the sum is 53.

The square root of 869222969 is about 29482.5875560474. The cubic root of 869222969 is about 954.3559774367.

Subtracting 869222969 from its reverse (969222968), we obtain a palindrome (99999999).

The spelling of 869222969 in words is "eight hundred sixty-nine million, two hundred twenty-two thousand, nine hundred sixty-nine".