818496941 has 8 divisors (see below), whose sum is σ = 823427640. Its totient is φ = 813580288.

The previous prime is 818496919. The next prime is 818496971. The reversal of 818496941 is 149694818.

It can be written as a sum of positive squares in 4 ways, for example, as 729270025 + 89226916 = 27005^2 + 9446^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-818496941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 818496941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818496971) 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, 127685 + ... + 133941.

It is an arithmetic number, because the mean of its divisors is an integer number (102928455).

Almost surely, 2^818496941 is an apocalyptic number.

It is an amenable number.

818496941 is a deficient number, since it is larger than the sum of its proper divisors (4930699).

818496941 is a wasteful number, since it uses less digits than its factorization.

818496941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7023.

The product of its digits is 497664, while the sum is 50.

The square root of 818496941 is about 28609.3855404131. The cubic root of 818496941 is about 935.4179229248.

The spelling of 818496941 in words is "eight hundred eighteen million, four hundred ninety-six thousand, nine hundred forty-one".