869404969 has 8 divisors (see below), whose sum is σ = 875124000. Its totient is φ = 863695872.

The previous prime is 869404967. The next prime is 869404979. The reversal of 869404969 is 969404968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 869404969 - 2¹ = 869404967 is a prime.

It is a super-2 number, since 2×869404969² = 1511730000243781922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869404967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259497 + ... + 262825.

It is an arithmetic number, because the mean of its divisors is an integer number (109390500).

Almost surely, 2^869404969 is an apocalyptic number.

It is an amenable number.

869404969 is a deficient number, since it is larger than the sum of its proper divisors (5719031).

869404969 is a wasteful number, since it uses less digits than its factorization.

869404969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The square root of 869404969 is about 29485.6739621125. The cubic root of 869404969 is about 954.4225812399.

Subtracting 869404969 from its reverse (969404968), we obtain a palindrome (99999999).

The spelling of 869404969 in words is "eight hundred sixty-nine million, four hundred four thousand, nine hundred sixty-nine".