869436912 has 80 divisors (see below), whose sum is σ = 2324708352. Its totient is φ = 279713280.

The previous prime is 869436901. The next prime is 869436917. The reversal of 869436912 is 219634968.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869436917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 917623 + ... + 918569.

Almost surely, 2^869436912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869436912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1162354176).

869436912 is an abundant number, since it is smaller than the sum of its proper divisors (1455271440).

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

869436912 is a wasteful number, since it uses less digits than its factorization.

869436912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606 (or 1600 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 869436912 is about 29486.2156269671. The cubic root of 869436912 is about 954.4342699804.

The spelling of 869436912 in words is "eight hundred sixty-nine million, four hundred thirty-six thousand, nine hundred twelve".