816883101 has 6 divisors (see below), whose sum is σ = 1179942270. Its totient is φ = 544588728.

The previous prime is 816883087. The next prime is 816883153. The reversal of 816883101 is 101388618.

It can be written as a sum of positive squares in only one way, i.e., 805083876 + 11799225 = 28374^2 + 3435^2 .

It is not a de Polignac number, because 816883101 - 2⁵ = 816883069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816883181) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45382386 + ... + 45382403.

It is an arithmetic number, because the mean of its divisors is an integer number (196657045).

Almost surely, 2^816883101 is an apocalyptic number.

It is an amenable number.

816883101 is a deficient number, since it is larger than the sum of its proper divisors (363059169).

816883101 is a wasteful number, since it uses less digits than its factorization.

816883101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90764795 (or 90764792 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 816883101 is about 28581.1668936032. The cubic root of 816883101 is about 934.8027269282.

The spelling of 816883101 in words is "eight hundred sixteen million, eight hundred eighty-three thousand, one hundred one".