813816948 has 24 divisors (see below), whose sum is σ = 2170178752. Its totient is φ = 232519104.

The previous prime is 813816947. The next prime is 813816953. The reversal of 813816948 is 849618318.

It is a junction number, because it is equal to n+sod(n) for n = 813816897 and 813816906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813816947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4844065 + ... + 4844232.

Almost surely, 2^813816948 is an apocalyptic number.

It is an amenable number.

813816948 is an abundant number, since it is smaller than the sum of its proper divisors (1356361804).

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

813816948 is a wasteful number, since it uses less digits than its factorization.

813816948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9688311 (or 9688309 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 813816948 is about 28527.4770703615. The cubic root of 813816948 is about 933.6316732763.

The spelling of 813816948 in words is "eight hundred thirteen million, eight hundred sixteen thousand, nine hundred forty-eight".