197876423 has 2 divisors, whose sum is σ = 197876424. Its totient is φ = 197876422.

The previous prime is 197876389. The next prime is 197876509. The reversal of 197876423 is 324678791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197876423 - 2⁸ = 197876167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197866423) 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 as a sum of consecutive naturals, namely, 98938211 + 98938212.

It is an arithmetic number, because the mean of its divisors is an integer number (98938212).

Almost surely, 2^197876423 is an apocalyptic number.

197876423 is a deficient number, since it is larger than the sum of its proper divisors (1).

197876423 is an equidigital number, since it uses as much as digits as its factorization.

197876423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 47.

The square root of 197876423 is about 14066.8554766159. The cubic root of 197876423 is about 582.7263862442.

The spelling of 197876423 in words is "one hundred ninety-seven million, eight hundred seventy-six thousand, four hundred twenty-three".