814517913 has 12 divisors (see below), whose sum is σ = 1193729264. Its totient is φ = 493647000.

The previous prime is 814517881. The next prime is 814517917. The reversal of 814517913 is 319715418.

It is not a de Polignac number, because 814517913 - 2⁵ = 814517881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (814517917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1121563 + ... + 1122288.

Almost surely, 2^814517913 is an apocalyptic number.

It is an amenable number.

814517913 is a deficient number, since it is larger than the sum of its proper divisors (379211351).

814517913 is a wasteful number, since it uses less digits than its factorization.

814517913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243876 (or 2243865 counting only the distinct ones).

The product of its digits is 30240, while the sum is 39.

The square root of 814517913 is about 28539.7602127278. The cubic root of 814517913 is about 933.8996513600.

The spelling of 814517913 in words is "eight hundred fourteen million, five hundred seventeen thousand, nine hundred thirteen".