197345407 has 8 divisors (see below), whose sum is σ = 226483200. Its totient is φ = 168444024.

The previous prime is 197345399. The next prime is 197345413. The reversal of 197345407 is 704543791.

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

It is not a de Polignac number, because 197345407 - 2³ = 197345399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197345407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197345437) 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, 57307 + ... + 60652.

It is an arithmetic number, because the mean of its divisors is an integer number (28310400).

Almost surely, 2^197345407 is an apocalyptic number.

197345407 is a deficient number, since it is larger than the sum of its proper divisors (29137793).

197345407 is a wasteful number, since it uses less digits than its factorization.

197345407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118205.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 197345407 is about 14047.9680737109. The cubic root of 197345407 is about 582.2046561623.

The spelling of 197345407 in words is "one hundred ninety-seven million, three hundred forty-five thousand, four hundred seven".