9391423 has 2 divisors, whose sum is σ = 9391424. Its totient is φ = 9391422.

The previous prime is 9391397. The next prime is 9391427. The reversal of 9391423 is 3241939.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9391423 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9391427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4695711 + 4695712.

It is an arithmetic number, because the mean of its divisors is an integer number (4695712).

Almost surely, 2^9391423 is an apocalyptic number.

9391423 is a deficient number, since it is larger than the sum of its proper divisors (1).

9391423 is an equidigital number, since it uses as much as digits as its factorization.

9391423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 9391423 is about 3064.5428696626. The cubic root of 9391423 is about 210.9812206732.

The spelling of 9391423 in words is "nine million, three hundred ninety-one thousand, four hundred twenty-three".