816032743 has 4 divisors (see below), whose sum is σ = 838087720. Its totient is φ = 793977768.

The previous prime is 816032719. The next prime is 816032771. The reversal of 816032743 is 347230618.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816032743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 816032699 and 816032708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816032783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11027433 + ... + 11027506.

It is an arithmetic number, because the mean of its divisors is an integer number (209521930).

Almost surely, 2^816032743 is an apocalyptic number.

816032743 is a deficient number, since it is larger than the sum of its proper divisors (22054977).

816032743 is a wasteful number, since it uses less digits than its factorization.

816032743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22054976.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 816032743 is about 28566.2868255572. The cubic root of 816032743 is about 934.4782443650.

The spelling of 816032743 in words is "eight hundred sixteen million, thirty-two thousand, seven hundred forty-three".