816233711 has 4 divisors (see below), whose sum is σ = 859193400. Its totient is φ = 773274024.

The previous prime is 816233707. The next prime is 816233713. The reversal of 816233711 is 117332618.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 816233711 - 2² = 816233707 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 (816233713) 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, 21479816 + ... + 21479853.

It is an arithmetic number, because the mean of its divisors is an integer number (214798350).

Almost surely, 2^816233711 is an apocalyptic number.

816233711 is a deficient number, since it is larger than the sum of its proper divisors (42959689).

816233711 is a wasteful number, since it uses less digits than its factorization.

816233711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42959688.

The product of its digits is 6048, while the sum is 32.

The square root of 816233711 is about 28569.8041820381. The cubic root of 816233711 is about 934.5549507679.

The spelling of 816233711 in words is "eight hundred sixteen million, two hundred thirty-three thousand, seven hundred eleven".