197232917 has 4 divisors (see below), whose sum is σ = 225409056. Its totient is φ = 169056780.

The previous prime is 197232899. The next prime is 197232923. The reversal of 197232917 is 719232791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 197232917 - 2⁶ = 197232853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197232617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14088059 + ... + 14088072.

It is an arithmetic number, because the mean of its divisors is an integer number (56352264).

Almost surely, 2^197232917 is an apocalyptic number.

It is an amenable number.

197232917 is a deficient number, since it is larger than the sum of its proper divisors (28176139).

197232917 is an equidigital number, since it uses as much as digits as its factorization.

197232917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28176138.

The product of its digits is 47628, while the sum is 41.

The square root of 197232917 is about 14043.9637211152. The cubic root of 197232917 is about 582.0940131859.

The spelling of 197232917 in words is "one hundred ninety-seven million, two hundred thirty-two thousand, nine hundred seventeen".