197320407 has 8 divisors (see below), whose sum is σ = 265806576. Its totient is φ = 130190592.

The previous prime is 197320399. The next prime is 197320441. The reversal of 197320407 is 704023791.

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

It is not a de Polignac number, because 197320407 - 2³ = 197320399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197320457) 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, 338748 + ... + 339329.

It is an arithmetic number, because the mean of its divisors is an integer number (33225822).

Almost surely, 2^197320407 is an apocalyptic number.

197320407 is a deficient number, since it is larger than the sum of its proper divisors (68486169).

197320407 is an equidigital number, since it uses as much as digits as its factorization.

197320407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678177.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 197320407 is about 14047.0782371282. The cubic root of 197320407 is about 582.1800702830.

The spelling of 197320407 in words is "one hundred ninety-seven million, three hundred twenty thousand, four hundred seven".