813894711 has 8 divisors (see below), whose sum is σ = 1240220544. Its totient is φ = 465082680.

The previous prime is 813894691. The next prime is 813894749. The reversal of 813894711 is 117498318.

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

It is not a de Polignac number, because 813894711 - 2²³ = 805506103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813895711) 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, 19378425 + ... + 19378466.

It is an arithmetic number, because the mean of its divisors is an integer number (155027568).

Almost surely, 2^813894711 is an apocalyptic number.

813894711 is a deficient number, since it is larger than the sum of its proper divisors (426325833).

813894711 is a wasteful number, since it uses less digits than its factorization.

813894711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38756901.

The product of its digits is 48384, while the sum is 42.

The square root of 813894711 is about 28528.8399869325. The cubic root of 813894711 is about 933.6614095651.

The spelling of 813894711 in words is "eight hundred thirteen million, eight hundred ninety-four thousand, seven hundred eleven".