813883730 has 32 divisors (see below), whose sum is σ = 1613131200. Its totient is φ = 293187520.

The previous prime is 813883723. The next prime is 813883739. The reversal of 813883730 is 37388318.

It is not an unprimeable number, because it can be changed into a prime (813883739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22805 + ... + 46344.

It is an arithmetic number, because the mean of its divisors is an integer number (50410350).

Almost surely, 2^813883730 is an apocalyptic number.

813883730 is a deficient number, since it is larger than the sum of its proper divisors (799247470).

813883730 is a wasteful number, since it uses less digits than its factorization.

813883730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69274.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 813883730 is about 28528.6475319108. The cubic root of 813883730 is about 933.6572105854.

The spelling of 813883730 in words is "eight hundred thirteen million, eight hundred eighty-three thousand, seven hundred thirty".