197972027 has 4 divisors (see below), whose sum is σ = 215969496. Its totient is φ = 179974560.

The previous prime is 197972003. The next prime is 197972051. The reversal of 197972027 is 720279791.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (197972003) and next prime (197972051).

It is a cyclic number.

It is not a de Polignac number, because 197972027 - 2¹⁴ = 197955643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197972527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8998718 + ... + 8998739.

It is an arithmetic number, because the mean of its divisors is an integer number (53992374).

Almost surely, 2^197972027 is an apocalyptic number.

197972027 is a deficient number, since it is larger than the sum of its proper divisors (17997469).

197972027 is a wasteful number, since it uses less digits than its factorization.

197972027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17997468.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 197972027 is about 14070.2532670880. The cubic root of 197972027 is about 582.8202192247.

The spelling of 197972027 in words is "one hundred ninety-seven million, nine hundred seventy-two thousand, twenty-seven".