813623112 has 48 divisors (see below), whose sum is σ = 2211992640. Its totient is φ = 270170208.

The previous prime is 813623089. The next prime is 813623119. The reversal of 813623112 is 211326318.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (813623119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2548 + ... + 40419.

It is an arithmetic number, because the mean of its divisors is an integer number (46083180).

Almost surely, 2^813623112 is an apocalyptic number.

It is an amenable number.

813623112 is an abundant number, since it is smaller than the sum of its proper divisors (1398369528).

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

813623112 is a wasteful number, since it uses less digits than its factorization.

813623112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43242 (or 43235 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 813623112 is about 28524.0795118791. The cubic root of 813623112 is about 933.5575428471.

The spelling of 813623112 in words is "eight hundred thirteen million, six hundred twenty-three thousand, one hundred twelve".