197634812 has 18 divisors (see below), whose sum is σ = 353392032. Its totient is φ = 96710584.

The previous prime is 197634781. The next prime is 197634839. The reversal of 197634812 is 218436791.

It is a self number, because there is not a number n which added to its sum of digits gives 197634812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2348 + ... + 20019.

Almost surely, 2^197634812 is an apocalyptic number.

It is an amenable number.

197634812 is a deficient number, since it is larger than the sum of its proper divisors (155757220).

197634812 is a wasteful number, since it uses less digits than its factorization.

197634812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22465 (or 22416 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 197634812 is about 14058.2649000508. The cubic root of 197634812 is about 582.4891161922.

The spelling of 197634812 in words is "one hundred ninety-seven million, six hundred thirty-four thousand, eight hundred twelve".