197907713 has 2 divisors, whose sum is σ = 197907714. Its totient is φ = 197907712.

The previous prime is 197907707. The next prime is 197907737. The reversal of 197907713 is 317709791.

It is a happy number.

197907713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163532944 + 34374769 = 12788^2 + 5863^2 .

It is a cyclic number.

It is not a de Polignac number, because 197907713 - 2¹² = 197903617 is a prime.

It is not a weakly prime, because it can be changed into another prime (197907793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98953856 + 98953857.

It is an arithmetic number, because the mean of its divisors is an integer number (98953857).

Almost surely, 2^197907713 is an apocalyptic number.

It is an amenable number.

197907713 is a deficient number, since it is larger than the sum of its proper divisors (1).

197907713 is an equidigital number, since it uses as much as digits as its factorization.

197907713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 83349, while the sum is 44.

The square root of 197907713 is about 14067.9676215152. The cubic root of 197907713 is about 582.7570999381.

The spelling of 197907713 in words is "one hundred ninety-seven million, nine hundred seven thousand, seven hundred thirteen".