197213692 has 96 divisors (see below), whose sum is σ = 415457280. Its totient is φ = 81077760.

The previous prime is 197213683. The next prime is 197213699. The reversal of 197213692 is 296312791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197213699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1439448 + ... + 1439584.

It is an arithmetic number, because the mean of its divisors is an integer number (4327680).

Almost surely, 2^197213692 is an apocalyptic number.

It is an amenable number.

197213692 is an abundant number, since it is smaller than the sum of its proper divisors (218243588).

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

197213692 is a wasteful number, since it uses less digits than its factorization.

197213692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 249 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 197213692 is about 14043.2792466717. The cubic root of 197213692 is about 582.0750996408.

Subtracting 197213692 from its reverse (296312791), we obtain a palindrome (99099099).

The spelling of 197213692 in words is "one hundred ninety-seven million, two hundred thirteen thousand, six hundred ninety-two".