997366229 has 2 divisors, whose sum is σ = 997366230. Its totient is φ = 997366228.

The previous prime is 997366199. The next prime is 997366303. The reversal of 997366229 is 922663799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 930372004 + 66994225 = 30502^2 + 8185^2 .

It is an emirp because it is prime and its reverse (922663799) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997366229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997360229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498683114 + 498683115.

It is an arithmetic number, because the mean of its divisors is an integer number (498683115).

Almost surely, 2^997366229 is an apocalyptic number.

It is an amenable number.

997366229 is a deficient number, since it is larger than the sum of its proper divisors (1).

997366229 is an equidigital number, since it uses as much as digits as its factorization.

997366229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 53.

The square root of 997366229 is about 31581.1055696282. The cubic root of 997366229 is about 999.1213044536.

The spelling of 997366229 in words is "nine hundred ninety-seven million, three hundred sixty-six thousand, two hundred twenty-nine".