818834516 has 6 divisors (see below), whose sum is σ = 1432960410. Its totient is φ = 409417256.

The previous prime is 818834491. The next prime is 818834557. The reversal of 818834516 is 615438818.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 628504900 + 190329616 = 25070^2 + 13796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102354311 + ... + 102354318.

It is an arithmetic number, because the mean of its divisors is an integer number (238826735).

Almost surely, 2^818834516 is an apocalyptic number.

It is an amenable number.

818834516 is a deficient number, since it is larger than the sum of its proper divisors (614125894).

818834516 is a wasteful number, since it uses less digits than its factorization.

818834516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204708633 (or 204708631 counting only the distinct ones).

The product of its digits is 184320, while the sum is 44.

The square root of 818834516 is about 28615.2846569801. The cubic root of 818834516 is about 935.5465042661.

The spelling of 818834516 in words is "eight hundred eighteen million, eight hundred thirty-four thousand, five hundred sixteen".