816318927 has 6 divisors (see below), whose sum is σ = 1179127352. Its totient is φ = 544212612.

The previous prime is 816318917. The next prime is 816318931. The reversal of 816318927 is 729813618.

816318927 is a `hidden beast` number, since 8 + 1 + 631 + 8 + 9 + 2 + 7 = 666.

It is not a de Polignac number, because 816318927 - 2⁶ = 816318863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816318917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45351043 + ... + 45351060.

Almost surely, 2^816318927 is an apocalyptic number.

816318927 is a deficient number, since it is larger than the sum of its proper divisors (362808425).

816318927 is a wasteful number, since it uses less digits than its factorization.

816318927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90702109 (or 90702106 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 816318927 is about 28571.2955079044. The cubic root of 816318927 is about 934.5874726066.

The spelling of 816318927 in words is "eight hundred sixteen million, three hundred eighteen thousand, nine hundred twenty-seven".