869731269 has 32 divisors (see below), whose sum is σ = 1325389824. Its totient is φ = 502159680.

The previous prime is 869731267. The next prime is 869731273. The reversal of 869731269 is 962137968.

It is not a de Polignac number, because 869731269 - 2¹ = 869731267 is a prime.

It is a super-2 number, since 2×869731269² = 1512864960552700722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869731267) 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 31 ways as a sum of consecutive naturals, for example, 197439 + ... + 201795.

It is an arithmetic number, because the mean of its divisors is an integer number (41418432).

Almost surely, 2^869731269 is an apocalyptic number.

It is an amenable number.

869731269 is a deficient number, since it is larger than the sum of its proper divisors (455658555).

869731269 is a wasteful number, since it uses less digits than its factorization.

869731269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657.

The product of its digits is 979776, while the sum is 51.

The square root of 869731269 is about 29491.2066385897. The cubic root of 869731269 is about 954.5419690765.

The spelling of 869731269 in words is "eight hundred sixty-nine million, seven hundred thirty-one thousand, two hundred sixty-nine".