197582997 has 8 divisors (see below), whose sum is σ = 270564256. Its totient is φ = 128161872.

The previous prime is 197582981. The next prime is 197583007. The reversal of 197582997 is 799285791.

197582997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 197582997 - 2⁴ = 197582981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197582947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889903 + ... + 890124.

It is an arithmetic number, because the mean of its divisors is an integer number (33820532).

Almost surely, 2^197582997 is an apocalyptic number.

It is an amenable number.

197582997 is a deficient number, since it is larger than the sum of its proper divisors (72981259).

197582997 is a wasteful number, since it uses less digits than its factorization.

197582997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780067.

The product of its digits is 2857680, while the sum is 57.

The square root of 197582997 is about 14056.4219131328. The cubic root of 197582997 is about 582.4382069567.

The spelling of 197582997 in words is "one hundred ninety-seven million, five hundred eighty-two thousand, nine hundred ninety-seven".