826804986 has 16 divisors (see below), whose sum is σ = 1889840064. Its totient is φ = 236229984.

The previous prime is 826804981. The next prime is 826804987. The reversal of 826804986 is 689408628.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (826804981) 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 7 ways as a sum of consecutive naturals, for example, 9842875 + ... + 9842958.

It is an arithmetic number, because the mean of its divisors is an integer number (118115004).

Almost surely, 2^826804986 is an apocalyptic number.

826804986 is an abundant number, since it is smaller than the sum of its proper divisors (1063035078).

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

826804986 is a wasteful number, since it uses less digits than its factorization.

826804986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19685845.

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 826804986 is about 28754.2168385787. The cubic root of 826804986 is about 938.5722197758.

The spelling of 826804986 in words is "eight hundred twenty-six million, eight hundred four thousand, nine hundred eighty-six".