102823992 has 80 divisors (see below), whose sum is σ = 289630440. Its totient is φ = 34222176.

The previous prime is 102823949. The next prime is 102823997. The reversal of 102823992 is 299328201.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102823997) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 157138 + ... + 157790.

Almost surely, 2^102823992 is an apocalyptic number.

102823992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102823992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144815220).

102823992 is an abundant number, since it is smaller than the sum of its proper divisors (186806448).

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

102823992 is an frugal number, since it uses more digits than its factorization.

102823992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 102823992 is about 10140.2165657347. The cubic root of 102823992 is about 468.4876573636.

The spelling of 102823992 in words is "one hundred two million, eight hundred twenty-three thousand, nine hundred ninety-two".