197941967 has 4 divisors (see below), whose sum is σ = 198322416. Its totient is φ = 197561520.

The previous prime is 197941949. The next prime is 197941993. The reversal of 197941967 is 769149791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769149791 = 41 ⋅18759751.

It is a cyclic number.

It is not a de Polignac number, because 197941967 - 2⁶ = 197941903 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 (197941567) 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 3 ways as a sum of consecutive naturals, for example, 189443 + ... + 190484.

It is an arithmetic number, because the mean of its divisors is an integer number (49580604).

Almost surely, 2^197941967 is an apocalyptic number.

197941967 is a deficient number, since it is larger than the sum of its proper divisors (380449).

197941967 is an equidigital number, since it uses as much as digits as its factorization.

197941967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380448.

The product of its digits is 857304, while the sum is 53.

The square root of 197941967 is about 14069.1850154869. The cubic root of 197941967 is about 582.7907193287.

The spelling of 197941967 in words is "one hundred ninety-seven million, nine hundred forty-one thousand, nine hundred sixty-seven".