997962193 has 2 divisors, whose sum is σ = 997962194. Its totient is φ = 997962192.

The previous prime is 997962191. The next prime is 997962209. The reversal of 997962193 is 391269799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 949687489 + 48274704 = 30817^2 + 6948^2 .

It is a cyclic number.

It is not a de Polignac number, because 997962193 - 2¹ = 997962191 is a prime.

Together with 997962191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (997962191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498981096 + 498981097.

It is an arithmetic number, because the mean of its divisors is an integer number (498981097).

Almost surely, 2^997962193 is an apocalyptic number.

It is an amenable number.

997962193 is a deficient number, since it is larger than the sum of its proper divisors (1).

997962193 is an equidigital number, since it uses as much as digits as its factorization.

997962193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1653372, while the sum is 55.

The square root of 997962193 is about 31590.5396123586. The cubic root of 997962193 is about 999.3202690705.

The spelling of 997962193 in words is "nine hundred ninety-seven million, nine hundred sixty-two thousand, one hundred ninety-three".