197289992 has 16 divisors (see below), whose sum is σ = 370488300. Its totient is φ = 98493120.

The previous prime is 197289979. The next prime is 197290007. The reversal of 197289992 is 299982791.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 192820996 + 4468996 = 13886^2 + 2114^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13367 + ... + 23942.

Almost surely, 2^197289992 is an apocalyptic number.

It is an amenable number.

197289992 is a deficient number, since it is larger than the sum of its proper divisors (173198308).

197289992 is a wasteful number, since it uses less digits than its factorization.

197289992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37976 (or 37972 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 56.

The square root of 197289992 is about 14045.9955859312. The cubic root of 197289992 is about 582.1501563020.

The spelling of 197289992 in words is "one hundred ninety-seven million, two hundred eighty-nine thousand, nine hundred ninety-two".