997032899 has 2 divisors, whose sum is σ = 997032900. Its totient is φ = 997032898.

The previous prime is 997032887. The next prime is 997032929. The reversal of 997032899 is 998230799.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997032899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (997032299) 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, 498516449 + 498516450.

It is an arithmetic number, because the mean of its divisors is an integer number (498516450).

Almost surely, 2^997032899 is an apocalyptic number.

997032899 is a deficient number, since it is larger than the sum of its proper divisors (1).

997032899 is an equidigital number, since it uses as much as digits as its factorization.

997032899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The square root of 997032899 is about 31575.8277642883. The cubic root of 997032899 is about 999.0099865301.

The spelling of 997032899 in words is "nine hundred ninety-seven million, thirty-two thousand, eight hundred ninety-nine".