869343920 has 20 divisors (see below), whose sum is σ = 2021224800. Its totient is φ = 347737536.

The previous prime is 869343911. The next prime is 869343929. The reversal of 869343920 is 29343968.

It is an interprime number because it is at equal distance from previous prime (869343911) and next prime (869343929).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (869343929) 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 3 ways as a sum of consecutive naturals, for example, 5433320 + ... + 5433479.

It is an arithmetic number, because the mean of its divisors is an integer number (101061240).

Almost surely, 2^869343920 is an apocalyptic number.

869343920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

869343920 is an abundant number, since it is smaller than the sum of its proper divisors (1151880880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869343920 is a wasteful number, since it uses less digits than its factorization.

869343920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10866812 (or 10866806 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 869343920 is about 29484.6387123872. The cubic root of 869343920 is about 954.4002410915.

The spelling of 869343920 in words is "eight hundred sixty-nine million, three hundred forty-three thousand, nine hundred twenty".