813434205 has 16 divisors (see below), whose sum is σ = 1308242880. Its totient is φ = 431582208.

The previous prime is 813434197. The next prime is 813434221. The reversal of 813434205 is 502434318.

It is not a de Polignac number, because 813434205 - 2³ = 813434197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137595 + ... + 143384.

It is an arithmetic number, because the mean of its divisors is an integer number (81765180).

Almost surely, 2^813434205 is an apocalyptic number.

It is an amenable number.

813434205 is a deficient number, since it is larger than the sum of its proper divisors (494808675).

813434205 is a wasteful number, since it uses less digits than its factorization.

813434205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281180.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 813434205 is about 28520.7679595063. The cubic root of 813434205 is about 933.4852861299.

The spelling of 813434205 in words is "eight hundred thirteen million, four hundred thirty-four thousand, two hundred five".