997753907 has 2 divisors, whose sum is σ = 997753908. Its totient is φ = 997753906.

The previous prime is 997753891. The next prime is 997753909. The reversal of 997753907 is 709357799.

997753907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 997753907 - 2⁴ = 997753891 is a prime.

Together with 997753909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (997753909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498876953 + 498876954.

It is an arithmetic number, because the mean of its divisors is an integer number (498876954).

Almost surely, 2^997753907 is an apocalyptic number.

997753907 is a deficient number, since it is larger than the sum of its proper divisors (1).

997753907 is an equidigital number, since it uses as much as digits as its factorization.

997753907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3750705, while the sum is 56.

The square root of 997753907 is about 31587.2427888222. The cubic root of 997753907 is about 999.2507410846.

The spelling of 997753907 in words is "nine hundred ninety-seven million, seven hundred fifty-three thousand, nine hundred seven".