909911423 has 2 divisors, whose sum is σ = 909911424. Its totient is φ = 909911422.

The previous prime is 909911341. The next prime is 909911447. The reversal of 909911423 is 324119909.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 909911423 - 2¹⁶ = 909845887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (909911623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454955711 + 454955712.

It is an arithmetic number, because the mean of its divisors is an integer number (454955712).

Almost surely, 2^909911423 is an apocalyptic number.

909911423 is a deficient number, since it is larger than the sum of its proper divisors (1).

909911423 is an equidigital number, since it uses as much as digits as its factorization.

909911423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 909911423 is about 30164.7380727896. The cubic root of 909911423 is about 969.0206656643.

The spelling of 909911423 in words is "nine hundred nine million, nine hundred eleven thousand, four hundred twenty-three".