198623696 has 80 divisors (see below), whose sum is σ = 416163840. Its totient is φ = 91653120.

The previous prime is 198623693. The next prime is 198623717. The reversal of 198623696 is 696326891.

198623696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×198623696² = 78902745225400832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198623693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1449740 + ... + 1449876.

It is an arithmetic number, because the mean of its divisors is an integer number (5202048).

Almost surely, 2^198623696 is an apocalyptic number.

198623696 is a gapful number since it is divisible by the number (16) 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 198623696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208081920).

198623696 is an abundant number, since it is smaller than the sum of its proper divisors (217540144).

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

198623696 is a wasteful number, since it uses less digits than its factorization.

198623696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 286 counting only the distinct ones).

The product of its digits is 839808, while the sum is 50.

The square root of 198623696 is about 14093.3919267152. The cubic root of 198623696 is about 583.4590129928.

The spelling of 198623696 in words is "one hundred ninety-eight million, six hundred twenty-three thousand, six hundred ninety-six".