869823426 has 16 divisors (see below), whose sum is σ = 1742318784. Its totient is φ = 289495824.

The previous prime is 869823421. The next prime is 869823443. The reversal of 869823426 is 624328968.

It is not an unprimeable number, because it can be changed into a prime (869823421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107086 + ... + 114921.

It is an arithmetic number, because the mean of its divisors is an integer number (108894924).

Almost surely, 2^869823426 is an apocalyptic number.

869823426 is an abundant number, since it is smaller than the sum of its proper divisors (872495358).

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

869823426 is a wasteful number, since it uses less digits than its factorization.

869823426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222665.

The product of its digits is 995328, while the sum is 48.

The square root of 869823426 is about 29492.7690459882. The cubic root of 869823426 is about 954.5756824087.

The spelling of 869823426 in words is "eight hundred sixty-nine million, eight hundred twenty-three thousand, four hundred twenty-six".