197112977 has 8 divisors (see below), whose sum is σ = 209506176. Its totient is φ = 184808512.

The previous prime is 197112917. The next prime is 197112991. The reversal of 197112977 is 779211791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197112977 - 2¹⁰ = 197111953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197112907) 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 7 ways as a sum of consecutive naturals, for example, 17573 + ... + 26514.

It is an arithmetic number, because the mean of its divisors is an integer number (26188272).

Almost surely, 2^197112977 is an apocalyptic number.

197112977 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

197112977 is a deficient number, since it is larger than the sum of its proper divisors (12393199).

197112977 is a wasteful number, since it uses less digits than its factorization.

197112977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44367.

The product of its digits is 55566, while the sum is 44.

The square root of 197112977 is about 14039.6929097470. The cubic root of 197112977 is about 581.9759961837.

The spelling of 197112977 in words is "one hundred ninety-seven million, one hundred twelve thousand, nine hundred seventy-seven".