813603768 has 64 divisors (see below), whose sum is σ = 2069867520. Its totient is φ = 266448000.

The previous prime is 813603757. The next prime is 813603779. The reversal of 813603768 is 867306318.

It is an interprime number because it is at equal distance from previous prime (813603757) and next prime (813603779).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624718 + ... + 626018.

It is an arithmetic number, because the mean of its divisors is an integer number (32341680).

Almost surely, 2^813603768 is an apocalyptic number.

It is an amenable number.

813603768 is an abundant number, since it is smaller than the sum of its proper divisors (1256263752).

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

813603768 is a wasteful number, since it uses less digits than its factorization.

813603768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748 (or 1744 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 813603768 is about 28523.7404279313. The cubic root of 813603768 is about 933.5501443027.

The spelling of 813603768 in words is "eight hundred thirteen million, six hundred three thousand, seven hundred sixty-eight".