816949284 has 24 divisors (see below), whose sum is σ = 1906698528. Its totient is φ = 272247360.

The previous prime is 816949267. The next prime is 816949319. The reversal of 816949284 is 482949618.

It is a super-2 number, since 2×816949284² = 1334812265256225312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67504 + ... + 78680.

It is an arithmetic number, because the mean of its divisors is an integer number (79445772).

Almost surely, 2^816949284 is an apocalyptic number.

It is an amenable number.

816949284 is an abundant number, since it is smaller than the sum of its proper divisors (1089749244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816949284 is a wasteful number, since it uses less digits than its factorization.

816949284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17275 (or 17273 counting only the distinct ones).

The product of its digits is 995328, while the sum is 51.

The square root of 816949284 is about 28582.3246780244. The cubic root of 816949284 is about 934.8279718207.

The spelling of 816949284 in words is "eight hundred sixteen million, nine hundred forty-nine thousand, two hundred eighty-four".