813434203 has 8 divisors (see below), whose sum is σ = 852208640. Its totient is φ = 775443240.

The previous prime is 813434197. The next prime is 813434221. The reversal of 813434203 is 302434318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 813434203 - 2¹⁷ = 813303131 is a prime.

It is a super-2 number, since 2×813434203² = 1323350405220490418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (813434263) 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, 193743 + ... + 197896.

It is an arithmetic number, because the mean of its divisors is an integer number (106526080).

Almost surely, 2^813434203 is an apocalyptic number.

813434203 is a deficient number, since it is larger than the sum of its proper divisors (38774437).

813434203 is a wasteful number, since it uses less digits than its factorization.

813434203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391737.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 813434203 is about 28520.7679244441. The cubic root of 813434203 is about 933.4852853649.

The spelling of 813434203 in words is "eight hundred thirteen million, four hundred thirty-four thousand, two hundred three".