816881341 has 8 divisors (see below), whose sum is σ = 855111168. Its totient is φ = 779394000.

The previous prime is 816881339. The next prime is 816881347. The reversal of 816881341 is 143188618.

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

It is a cyclic number.

It is not a de Polignac number, because 816881341 - 2¹ = 816881339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 816881294 and 816881303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816881347) 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, 183370 + ... + 187771.

It is an arithmetic number, because the mean of its divisors is an integer number (106888896).

Almost surely, 2^816881341 is an apocalyptic number.

It is an amenable number.

816881341 is a deficient number, since it is larger than the sum of its proper divisors (38229827).

816881341 is a wasteful number, since it uses less digits than its factorization.

816881341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371243.

The product of its digits is 36864, while the sum is 40.

The square root of 816881341 is about 28581.1361040810. The cubic root of 816881341 is about 934.8020555739.

The spelling of 816881341 in words is "eight hundred sixteen million, eight hundred eighty-one thousand, three hundred forty-one".