997286429 has 2 divisors, whose sum is σ = 997286430. Its totient is φ = 997286428.

The previous prime is 997286393. The next prime is 997286449. The reversal of 997286429 is 924682799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 944025625 + 53260804 = 30725^2 + 7298^2 .

It is a cyclic number.

It is not a de Polignac number, because 997286429 - 2¹⁶ = 997220893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997286449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498643214 + 498643215.

It is an arithmetic number, because the mean of its divisors is an integer number (498643215).

Almost surely, 2^997286429 is an apocalyptic number.

It is an amenable number.

997286429 is a deficient number, since it is larger than the sum of its proper divisors (1).

997286429 is an equidigital number, since it uses as much as digits as its factorization.

997286429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 56.

The square root of 997286429 is about 31579.8421307010. The cubic root of 997286429 is about 999.0946569346.

The spelling of 997286429 in words is "nine hundred ninety-seven million, two hundred eighty-six thousand, four hundred twenty-nine".