816994119 has 16 divisors (see below), whose sum is σ = 1163243520. Its totient is φ = 508915680.

The previous prime is 816994117. The next prime is 816994133. The reversal of 816994119 is 911499618.

It is a happy number.

816994119 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 816994119 - 2¹ = 816994117 is a prime.

It is a super-2 number, since 2×816994119² = 1334958780961172322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816994117) 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, 148767 + ... + 154160.

It is an arithmetic number, because the mean of its divisors is an integer number (72702720).

Almost surely, 2^816994119 is an apocalyptic number.

816994119 is a deficient number, since it is larger than the sum of its proper divisors (346249401).

816994119 is a wasteful number, since it uses less digits than its factorization.

816994119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302990.

The product of its digits is 139968, while the sum is 48.

The square root of 816994119 is about 28583.1089806550. The cubic root of 816994119 is about 934.8450729416.

The spelling of 816994119 in words is "eight hundred sixteen million, nine hundred ninety-four thousand, one hundred nineteen".