197007385 has 4 divisors (see below), whose sum is σ = 236408868. Its totient is φ = 157605904.

The previous prime is 197007331. The next prime is 197007401. The reversal of 197007385 is 583700791.

197007385 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: 583700791 = 43 ⋅13574437.

It can be written as a sum of positive squares in 2 ways, for example, as 135792409 + 61214976 = 11653^2 + 7824^2 .

It is a cyclic number.

It is not a de Polignac number, because 197007385 - 2²³ = 188618777 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19700734 + ... + 19700743.

It is an arithmetic number, because the mean of its divisors is an integer number (59102217).

Almost surely, 2^197007385 is an apocalyptic number.

It is an amenable number.

197007385 is a deficient number, since it is larger than the sum of its proper divisors (39401483).

197007385 is an equidigital number, since it uses as much as digits as its factorization.

197007385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39401482.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 197007385 is about 14035.9319248848. The cubic root of 197007385 is about 581.8720575073.

The spelling of 197007385 in words is "one hundred ninety-seven million, seven thousand, three hundred eighty-five".