816327303 has 16 divisors (see below), whose sum is σ = 1202419200. Its totient is φ = 488479680.

The previous prime is 816327299. The next prime is 816327307. The reversal of 816327303 is 303723618.

It is an interprime number because it is at equal distance from previous prime (816327299) and next prime (816327307).

It is not a de Polignac number, because 816327303 - 2² = 816327299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816327307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153958 + ... + 159171.

It is an arithmetic number, because the mean of its divisors is an integer number (75151200).

Almost surely, 2^816327303 is an apocalyptic number.

816327303 is a deficient number, since it is larger than the sum of its proper divisors (386091897).

816327303 is a wasteful number, since it uses less digits than its factorization.

816327303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313222.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 816327303 is about 28571.4420882111. The cubic root of 816327303 is about 934.5906691015.

The spelling of 816327303 in words is "eight hundred sixteen million, three hundred twenty-seven thousand, three hundred three".