197407 has 4 divisors (see below), whose sum is σ = 225616. Its totient is φ = 169200.

The previous prime is 197389. The next prime is 197419. The reversal of 197407 is 704791.

197407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704791 = 89 ⋅7919.

It is a cyclic number.

It is not a de Polignac number, because 197407 - 2⁷ = 197279 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197207) 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, 14094 + ... + 14107.

It is an arithmetic number, because the mean of its divisors is an integer number (56404).

2¹⁹⁷⁴⁰⁷ is an apocalyptic number.

197407 is a deficient number, since it is larger than the sum of its proper divisors (28209).

197407 is an equidigital number, since it uses as much as digits as its factorization.

197407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28208.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 197407 is about 444.3050753705. The cubic root of 197407 is about 58.2265220027.

The spelling of 197407 in words is "one hundred ninety-seven thousand, four hundred seven".