123983892 has 192 divisors, whose sum is σ = 367718400. Its totient is φ = 35925120.

The previous prime is 123983891. The next prime is 123983897. The reversal of 123983892 is 298389321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123983891) 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 63 ways as a sum of consecutive naturals, for example, 1746217 + ... + 1746287.

It is an arithmetic number, because the mean of its divisors is an integer number (1915200).

Almost surely, 2^123983892 is an apocalyptic number.

123983892 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 123983892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183859200).

123983892 is an abundant number, since it is smaller than the sum of its proper divisors (243734508).

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

123983892 is a wasteful number, since it uses less digits than its factorization.

123983892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 155 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 123983892 is about 11134.8054316185. The cubic root of 123983892 is about 498.6415016406.

It can be divided in two parts, 12398 and 3892, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 123983892 in words is "one hundred twenty-three million, nine hundred eighty-three thousand, eight hundred ninety-two".