197190847 has 6 divisors (see below), whose sum is σ = 229385328. Its totient is φ = 169020684.

The previous prime is 197190839. The next prime is 197190881. The reversal of 197190847 is 748091791.

It is not a de Polignac number, because 197190847 - 2³ = 197190839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 197190797 and 197190806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197190817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2012103 + ... + 2012200.

It is an arithmetic number, because the mean of its divisors is an integer number (38230888).

Almost surely, 2^197190847 is an apocalyptic number.

197190847 is a deficient number, since it is larger than the sum of its proper divisors (32194481).

197190847 is an equidigital number, since it uses as much as digits as its factorization.

197190847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024317 (or 4024310 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 46.

The square root of 197190847 is about 14042.4658447155. The cubic root of 197190847 is about 582.0526231434.

The spelling of 197190847 in words is "one hundred ninety-seven million, one hundred ninety thousand, eight hundred forty-seven".