197575663 has 2 divisors, whose sum is σ = 197575664. Its totient is φ = 197575662.

The previous prime is 197575657. The next prime is 197575667. The reversal of 197575663 is 366575791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197575663 - 2⁹ = 197575151 is a prime.

It is a super-2 number, since 2×197575663² = 78072285219779138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197575667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98787831 + 98787832.

It is an arithmetic number, because the mean of its divisors is an integer number (98787832).

Almost surely, 2^197575663 is an apocalyptic number.

197575663 is a deficient number, since it is larger than the sum of its proper divisors (1).

197575663 is an equidigital number, since it uses as much as digits as its factorization.

197575663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 49.

The square root of 197575663 is about 14056.1610335112. The cubic root of 197575663 is about 582.4310004414.

The spelling of 197575663 in words is "one hundred ninety-seven million, five hundred seventy-five thousand, six hundred sixty-three".