197682931 has 2 divisors, whose sum is σ = 197682932. Its totient is φ = 197682930.

The previous prime is 197682889. The next prime is 197682941. The reversal of 197682931 is 139286791.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197682931 - 2⁷ = 197682803 is a prime.

It is a super-2 number, since 2×197682931² = 78157082417501522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (197682941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98841465 + 98841466.

It is an arithmetic number, because the mean of its divisors is an integer number (98841466).

Almost surely, 2^197682931 is an apocalyptic number.

197682931 is a deficient number, since it is larger than the sum of its proper divisors (1).

197682931 is an equidigital number, since it uses as much as digits as its factorization.

197682931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 46.

The square root of 197682931 is about 14059.9762090837. The cubic root of 197682931 is about 582.5363860685.

The spelling of 197682931 in words is "one hundred ninety-seven million, six hundred eighty-two thousand, nine hundred thirty-one".