997867301 has 2 divisors, whose sum is σ = 997867302. Its totient is φ = 997867300.

The previous prime is 997867291. The next prime is 997867333. The reversal of 997867301 is 103768799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 786746401 + 211120900 = 28049^2 + 14530^2 .

It is a cyclic number.

It is not a de Polignac number, because 997867301 - 2⁶ = 997867237 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 997867301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997867201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498933650 + 498933651.

It is an arithmetic number, because the mean of its divisors is an integer number (498933651).

Almost surely, 2^997867301 is an apocalyptic number.

It is an amenable number.

997867301 is a deficient number, since it is larger than the sum of its proper divisors (1).

997867301 is an equidigital number, since it uses as much as digits as its factorization.

997867301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 50.

The square root of 997867301 is about 31589.0376713188. The cubic root of 997867301 is about 999.2885943554.

The spelling of 997867301 in words is "nine hundred ninety-seven million, eight hundred sixty-seven thousand, three hundred one".