869099112 has 64 divisors (see below), whose sum is σ = 2759049600. Its totient is φ = 248313600.

The previous prime is 869099111. The next prime is 869099113. The reversal of 869099112 is 211990968.

It is an interprime number because it is at equal distance from previous prime (869099111) and next prime (869099113).

It is not an unprimeable number, because it can be changed into a prime (869099111) 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, 285889 + ... + 288912.

It is an arithmetic number, because the mean of its divisors is an integer number (43110150).

Almost surely, 2^869099112 is an apocalyptic number.

It is an amenable number.

869099112 is an abundant number, since it is smaller than the sum of its proper divisors (1889950488).

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

869099112 is a wasteful number, since it uses less digits than its factorization.

869099112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574823 (or 574813 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 869099112 is about 29480.4869701978. The cubic root of 869099112 is about 954.3106460364.

The spelling of 869099112 in words is "eight hundred sixty-nine million, ninety-nine thousand, one hundred twelve".