816479499 has 16 divisors (see below), whose sum is σ = 1195478784. Its totient is φ = 491556000.

The previous prime is 816479497. The next prime is 816479513. The reversal of 816479499 is 994974618.

816479499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 816479499 - 2¹ = 816479497 is a prime.

It is a super-3 number, since 3×816479499³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (816479497) 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, 76944 + ... + 86909.

It is an arithmetic number, because the mean of its divisors is an integer number (74717424).

Almost surely, 2^816479499 is an apocalyptic number.

816479499 is a deficient number, since it is larger than the sum of its proper divisors (378999285).

816479499 is a wasteful number, since it uses less digits than its factorization.

816479499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164018.

The product of its digits is 3919104, while the sum is 57.

The square root of 816479499 is about 28574.1053928203. The cubic root of 816479499 is about 934.6487471633.

The spelling of 816479499 in words is "eight hundred sixteen million, four hundred seventy-nine thousand, four hundred ninety-nine".