997000507 has 2 divisors, whose sum is σ = 997000508. Its totient is φ = 997000506.

The previous prime is 997000457. The next prime is 997000549. The reversal of 997000507 is 705000799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997000507 - 2¹⁵ = 996967739 is a prime.

It is not a weakly prime, because it can be changed into another prime (997000007) 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, 498500253 + 498500254.

It is an arithmetic number, because the mean of its divisors is an integer number (498500254).

Almost surely, 2^997000507 is an apocalyptic number.

997000507 is a deficient number, since it is larger than the sum of its proper divisors (1).

997000507 is an equidigital number, since it uses as much as digits as its factorization.

997000507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 37.

The square root of 997000507 is about 31575.3148361184. The cubic root of 997000507 is about 998.9991676688. Note that the first 3 decimals are identical.

The spelling of 997000507 in words is "nine hundred ninety-seven million, five hundred seven", and thus it is an aban number.