197668995 has 16 divisors (see below), whose sum is σ = 323985312. Its totient is φ = 102851840.

The previous prime is 197668973. The next prime is 197669029. The reversal of 197668995 is 599866791.

It is not a de Polignac number, because 197668995 - 2⁶ = 197668931 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160092 + ... + 161321.

It is an arithmetic number, because the mean of its divisors is an integer number (20249082).

Almost surely, 2^197668995 is an apocalyptic number.

197668995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

197668995 is a deficient number, since it is larger than the sum of its proper divisors (126316317).

197668995 is a wasteful number, since it uses less digits than its factorization.

197668995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321462.

The product of its digits is 7348320, while the sum is 60.

The square root of 197668995 is about 14059.4806091833. The cubic root of 197668995 is about 582.5226967769.

The spelling of 197668995 in words is "one hundred ninety-seven million, six hundred sixty-eight thousand, nine hundred ninety-five".