197992063 has 4 divisors (see below), whose sum is σ = 198781128. Its totient is φ = 197203000.

The previous prime is 197992057. The next prime is 197992087. The reversal of 197992063 is 360299791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 360299791 = 47 ⋅7665953.

It is a cyclic number.

It is not a de Polignac number, because 197992063 - 2¹³ = 197983871 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 (197992043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394156 + ... + 394657.

It is an arithmetic number, because the mean of its divisors is an integer number (49695282).

Almost surely, 2^197992063 is an apocalyptic number.

197992063 is a deficient number, since it is larger than the sum of its proper divisors (789065).

197992063 is an equidigital number, since it uses as much as digits as its factorization.

197992063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789064.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 197992063 is about 14070.9652476296. The cubic root of 197992063 is about 582.8398802380.

The spelling of 197992063 in words is "one hundred ninety-seven million, nine hundred ninety-two thousand, sixty-three".