813103596 has 60 divisors (see below), whose sum is σ = 2136791272. Its totient is φ = 269609472.

The previous prime is 813103589. The next prime is 813103597. The reversal of 813103596 is 695301318.

It is a happy number.

It is a super-2 number, since 2×813103596² = 1322274915656262432, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 813103596.

It is not an unprimeable number, because it can be changed into a prime (813103597) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 56031 + ... + 69033.

Almost surely, 2^813103596 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 813103596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068395636).

813103596 is an abundant number, since it is smaller than the sum of its proper divisors (1323687676).

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

813103596 is a wasteful number, since it uses less digits than its factorization.

813103596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13212 (or 13201 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 813103596 is about 28514.9714360720. The cubic root of 813103596 is about 933.3588016293.

The spelling of 813103596 in words is "eight hundred thirteen million, one hundred three thousand, five hundred ninety-six".