820734998 has 16 divisors (see below), whose sum is σ = 1259991936. Its totient is φ = 400807680.

The previous prime is 820734997. The next prime is 820735049. The reversal of 820734998 is 899437028.

It is a happy number.

820734998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820734991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6278 + ... + 40998.

It is an arithmetic number, because the mean of its divisors is an integer number (78749496).

Almost surely, 2^820734998 is an apocalyptic number.

820734998 is a deficient number, since it is larger than the sum of its proper divisors (439256938).

820734998 is a wasteful number, since it uses less digits than its factorization.

820734998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34999.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 820734998 is about 28648.4728737851. The cubic root of 820734998 is about 936.2697336368.

The spelling of 820734998 in words is "eight hundred twenty million, seven hundred thirty-four thousand, nine hundred ninety-eight".