197971463 has 2 divisors, whose sum is σ = 197971464. Its totient is φ = 197971462.

The previous prime is 197971453. The next prime is 197971519. The reversal of 197971463 is 364179791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197971463 - 2⁴ = 197971447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197971453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98985731 + 98985732.

It is an arithmetic number, because the mean of its divisors is an integer number (98985732).

Almost surely, 2^197971463 is an apocalyptic number.

197971463 is a deficient number, since it is larger than the sum of its proper divisors (1).

197971463 is an equidigital number, since it uses as much as digits as its factorization.

197971463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 197971463 is about 14070.2332247906. The cubic root of 197971463 is about 582.8196657611.

The spelling of 197971463 in words is "one hundred ninety-seven million, nine hundred seventy-one thousand, four hundred sixty-three".