816264273 has 32 divisors (see below), whose sum is σ = 1241551872. Its totient is φ = 472190400.

The previous prime is 816264271. The next prime is 816264307. The reversal of 816264273 is 372462618.

It is a happy number.

It is not a de Polignac number, because 816264273 - 2¹ = 816264271 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (816264271) 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 31 ways as a sum of consecutive naturals, for example, 500886 + ... + 502512.

It is an arithmetic number, because the mean of its divisors is an integer number (38798496).

Almost surely, 2^816264273 is an apocalyptic number.

It is an amenable number.

816264273 is a deficient number, since it is larger than the sum of its proper divisors (425287599).

816264273 is a wasteful number, since it uses less digits than its factorization.

816264273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325.

The product of its digits is 96768, while the sum is 39.

The square root of 816264273 is about 28570.3390424405. The cubic root of 816264273 is about 934.5666147115.

The spelling of 816264273 in words is "eight hundred sixteen million, two hundred sixty-four thousand, two hundred seventy-three".