996258397 has 2 divisors, whose sum is σ = 996258398. Its totient is φ = 996258396.

The previous prime is 996258359. The next prime is 996258433. The reversal of 996258397 is 793852699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 880071556 + 116186841 = 29666^2 + 10779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996258397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996258097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498129198 + 498129199.

It is an arithmetic number, because the mean of its divisors is an integer number (498129199).

Almost surely, 2^996258397 is an apocalyptic number.

It is an amenable number.

996258397 is a deficient number, since it is larger than the sum of its proper divisors (1).

996258397 is an equidigital number, since it uses as much as digits as its factorization.

996258397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7348320, while the sum is 58.

The square root of 996258397 is about 31563.5612217633. The cubic root of 996258397 is about 998.7512402482.

The spelling of 996258397 in words is "nine hundred ninety-six million, two hundred fifty-eight thousand, three hundred ninety-seven".