996123798 has 64 divisors (see below), whose sum is σ = 2253312000. Its totient is φ = 326132352.

The previous prime is 996123769. The next prime is 996123803. The reversal of 996123798 is 897321699.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1019086 + ... + 1020062.

It is an arithmetic number, because the mean of its divisors is an integer number (35208000).

Almost surely, 2^996123798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 996123798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126656000).

996123798 is an abundant number, since it is smaller than the sum of its proper divisors (1257188202).

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

996123798 is a wasteful number, since it uses less digits than its factorization.

996123798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306 (or 1300 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 996123798 is about 31561.4289600455. The cubic root of 996123798 is about 998.7062596243.

The spelling of 996123798 in words is "nine hundred ninety-six million, one hundred twenty-three thousand, seven hundred ninety-eight".