197342397 has 24 divisors (see below), whose sum is σ = 327739776. Its totient is φ = 112085856.

The previous prime is 197342371. The next prime is 197342413. The reversal of 197342397 is 793243791.

It is not a de Polignac number, because 197342397 - 2¹⁰ = 197341373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197342317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1143 + ... + 19899.

It is an arithmetic number, because the mean of its divisors is an integer number (13655824).

Almost surely, 2^197342397 is an apocalyptic number.

It is an amenable number.

197342397 is a deficient number, since it is larger than the sum of its proper divisors (130397379).

197342397 is a wasteful number, since it uses less digits than its factorization.

197342397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18937 (or 18934 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 197342397 is about 14047.8609403710. The cubic root of 197342397 is about 582.2016961323.

The spelling of 197342397 in words is "one hundred ninety-seven million, three hundred forty-two thousand, three hundred ninety-seven".