816343082 has 4 divisors (see below), whose sum is σ = 1224514626. Its totient is φ = 408171540.

The previous prime is 816343079. The next prime is 816343091. The reversal of 816343082 is 280343618.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280343618 = 2 ⋅140171809.

It can be written as a sum of positive squares in only one way, i.e., 812307001 + 4036081 = 28501^2 + 2009^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204085769 + ... + 204085772.

Almost surely, 2^816343082 is an apocalyptic number.

816343082 is a deficient number, since it is larger than the sum of its proper divisors (408171544).

816343082 is a wasteful number, since it uses less digits than its factorization.

816343082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408171543.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 816343082 is about 28571.7182192461. The cubic root of 816343082 is about 934.5966907104.

The spelling of 816343082 in words is "eight hundred sixteen million, three hundred forty-three thousand, eighty-two".