102823818 has 16 divisors (see below), whose sum is σ = 210663936. Its totient is φ = 33438560.

The previous prime is 102823811. The next prime is 102823829. The reversal of 102823818 is 818328201.

It is not an unprimeable number, because it can be changed into a prime (102823811) 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, 208746 + ... + 209237.

It is an arithmetic number, because the mean of its divisors is an integer number (13166496).

Almost surely, 2^102823818 is an apocalyptic number.

102823818 is an abundant number, since it is smaller than the sum of its proper divisors (107840118).

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

102823818 is a wasteful number, since it uses less digits than its factorization.

102823818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418029.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 102823818 is about 10140.2079860326. The cubic root of 102823818 is about 468.4873931033.

The spelling of 102823818 in words is "one hundred two million, eight hundred twenty-three thousand, eight hundred eighteen".