997302461 has 2 divisors, whose sum is σ = 997302462. Its totient is φ = 997302460.

The previous prime is 997302413. The next prime is 997302473. The reversal of 997302461 is 164203799.

997302461 = 22330² + 22331².

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 498673561 + 498628900 = 22331^2 + 22330^2 .

It is a cyclic number.

It is not a de Polignac number, because 997302461 - 2²⁶ = 930193597 is a prime.

It is a super-2 number, since 2×997302461² = 1989224397433313042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997302401) 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, 498651230 + 498651231.

It is an arithmetic number, because the mean of its divisors is an integer number (498651231).

Almost surely, 2^997302461 is an apocalyptic number.

997302461 is the 22331-st centered square number.

It is an amenable number.

997302461 is a deficient number, since it is larger than the sum of its proper divisors (1).

997302461 is an equidigital number, since it uses as much as digits as its factorization.

997302461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 997302461 is about 31580.0959624888. The cubic root of 997302461 is about 999.1000105954.

The spelling of 997302461 in words is "nine hundred ninety-seven million, three hundred two thousand, four hundred sixty-one".