197973995 has 8 divisors (see below), whose sum is σ = 247898016. Its totient is φ = 151493056.

The previous prime is 197973989. The next prime is 197974009. The reversal of 197973995 is 599379791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 197973995 - 2⁸ = 197973739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860642 + ... + 860871.

It is an arithmetic number, because the mean of its divisors is an integer number (30987252).

Almost surely, 2^197973995 is an apocalyptic number.

197973995 is a deficient number, since it is larger than the sum of its proper divisors (49924021).

197973995 is a wasteful number, since it uses less digits than its factorization.

197973995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721541.

The product of its digits is 4822335, while the sum is 59.

The square root of 197973995 is about 14070.3232016894. The cubic root of 197973995 is about 582.8221504510.

The spelling of 197973995 in words is "one hundred ninety-seven million, nine hundred seventy-three thousand, nine hundred ninety-five".