197223936 has 320 divisors, whose sum is σ = 692955648. Its totient is φ = 48365568.

The previous prime is 197223889. The next prime is 197223937. The reversal of 197223936 is 639322791.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197223937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2376151 + ... + 2376233.

Almost surely, 2^197223936 is an apocalyptic number.

197223936 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 197223936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346477824).

197223936 is an abundant number, since it is smaller than the sum of its proper divisors (495731712).

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

197223936 is a wasteful number, since it uses less digits than its factorization.

197223936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 125 counting only the distinct ones).

The product of its digits is 122472, while the sum is 42.

The square root of 197223936 is about 14043.6439715624. The cubic root of 197223936 is about 582.0851778357.

The spelling of 197223936 in words is "one hundred ninety-seven million, two hundred twenty-three thousand, nine hundred thirty-six".