197877941 has 2 divisors, whose sum is σ = 197877942. Its totient is φ = 197877940.

The previous prime is 197877907. The next prime is 197877949. The reversal of 197877941 is 149778791.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173027716 + 24850225 = 13154^2 + 4985^2 .

It is a cyclic number.

It is not a de Polignac number, because 197877941 - 2¹⁴ = 197861557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197877949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98938970 + 98938971.

It is an arithmetic number, because the mean of its divisors is an integer number (98938971).

Almost surely, 2^197877941 is an apocalyptic number.

It is an amenable number.

197877941 is a deficient number, since it is larger than the sum of its proper divisors (1).

197877941 is an equidigital number, since it uses as much as digits as its factorization.

197877941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 53.

The square root of 197877941 is about 14066.9094331342. The cubic root of 197877941 is about 582.7278763601.

The spelling of 197877941 in words is "one hundred ninety-seven million, eight hundred seventy-seven thousand, nine hundred forty-one".