813834127 has 4 divisors (see below), whose sum is σ = 813892360. Its totient is φ = 813775896.

The previous prime is 813834121. The next prime is 813834179. The reversal of 813834127 is 721438318.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(813834127) divides (813834127-1)³.

It is a cyclic number.

It is not a de Polignac number, because 813834127 - 2¹¹ = 813832079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813834121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5824 + ... + 40762.

It is an arithmetic number, because the mean of its divisors is an integer number (203473090).

Almost surely, 2^813834127 is an apocalyptic number.

813834127 is the 23293-rd pentagonal number.

813834127 is a deficient number, since it is larger than the sum of its proper divisors (58233).

813834127 is a wasteful number, since it uses less digits than its factorization.

813834127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58232.

The product of its digits is 32256, while the sum is 37.

The square root of 813834127 is about 28527.7781644488. The cubic root of 813834127 is about 933.6382426265.

The spelling of 813834127 in words is "eight hundred thirteen million, eight hundred thirty-four thousand, one hundred twenty-seven".