813835284 has 24 divisors (see below), whose sum is σ = 1998894240. Its totient is φ = 257000544.

The previous prime is 813835283. The next prime is 813835307. The reversal of 813835284 is 482538318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813835283) 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, 1784499 + ... + 1784954.

It is an arithmetic number, because the mean of its divisors is an integer number (83287260).

Almost surely, 2^813835284 is an apocalyptic number.

It is an amenable number.

813835284 is an abundant number, since it is smaller than the sum of its proper divisors (1185058956).

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

813835284 is a wasteful number, since it uses less digits than its factorization.

813835284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569479 (or 3569477 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 813835284 is about 28527.7984429223. The cubic root of 813835284 is about 933.6386850668.

The spelling of 813835284 in words is "eight hundred thirteen million, eight hundred thirty-five thousand, two hundred eighty-four".