993197 has 2 divisors, whose sum is σ = 993198. Its totient is φ = 993196.

The previous prime is 993169. The next prime is 993199. The reversal of 993197 is 791399.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 948676 + 44521 = 974^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 993197 - 2⁸ = 992941 is a prime.

Together with 993199, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 993197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496598 + 496599.

It is an arithmetic number, because the mean of its divisors is an integer number (496599).

2⁹⁹³¹⁹⁷ is an apocalyptic number.

It is an amenable number.

993197 is a deficient number, since it is larger than the sum of its proper divisors (1).

993197 is an equidigital number, since it uses as much as digits as its factorization.

993197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15309, while the sum is 38.

The square root of 993197 is about 996.5926951368. The cubic root of 993197 is about 99.7727171498.

The spelling of 993197 in words is "nine hundred ninety-three thousand, one hundred ninety-seven".