997260673 has 2 divisors, whose sum is σ = 997260674. Its totient is φ = 997260672.

The previous prime is 997260631. The next prime is 997260697. The reversal of 997260673 is 376062799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 917908209 + 79352464 = 30297^2 + 8908^2 .

It is a cyclic number.

It is not a de Polignac number, because 997260673 - 2⁹ = 997260161 is a prime.

It is not a weakly prime, because it can be changed into another prime (997260623) 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, 498630336 + 498630337.

It is an arithmetic number, because the mean of its divisors is an integer number (498630337).

Almost surely, 2^997260673 is an apocalyptic number.

It is an amenable number.

997260673 is a deficient number, since it is larger than the sum of its proper divisors (1).

997260673 is an equidigital number, since it uses as much as digits as its factorization.

997260673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 49.

The square root of 997260673 is about 31579.4343362892. The cubic root of 997260673 is about 999.0860559608.

The spelling of 997260673 in words is "nine hundred ninety-seven million, two hundred sixty thousand, six hundred seventy-three".