997836632239 has 2 divisors, whose sum is σ = 997836632240. Its totient is φ = 997836632238.

The previous prime is 997836632231. The next prime is 997836632249. The reversal of 997836632239 is 932236638799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 997836632239 - 2³ = 997836632231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997836632231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498918316119 + 498918316120.

It is an arithmetic number, because the mean of its divisors is an integer number (498918316120).

Almost surely, 2^997836632239 is an apocalyptic number.

997836632239 is a deficient number, since it is larger than the sum of its proper divisors (1).

997836632239 is an equidigital number, since it uses as much as digits as its factorization.

997836632239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158723712, while the sum is 67.

The spelling of 997836632239 in words is "nine hundred ninety-seven billion, eight hundred thirty-six million, six hundred thirty-two thousand, two hundred thirty-nine".