997905367 has 2 divisors, whose sum is σ = 997905368. Its totient is φ = 997905366.

The previous prime is 997905361. The next prime is 997905383. The reversal of 997905367 is 763509799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 997905367 - 2⁷ = 997905239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997905361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498952683 + 498952684.

It is an arithmetic number, because the mean of its divisors is an integer number (498952684).

Almost surely, 2^997905367 is an apocalyptic number.

997905367 is a deficient number, since it is larger than the sum of its proper divisors (1).

997905367 is an equidigital number, since it uses as much as digits as its factorization.

997905367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3214890, while the sum is 55.

The square root of 997905367 is about 31589.6401847188. The cubic root of 997905367 is about 999.3013009333.

The spelling of 997905367 in words is "nine hundred ninety-seven million, nine hundred five thousand, three hundred sixty-seven".