4129423 has 2 divisors, whose sum is σ = 4129424. Its totient is φ = 4129422.

The previous prime is 4129393. The next prime is 4129429. The reversal of 4129423 is 3249214.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4129423 - 2⁹ = 4128911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4129429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2064711 + 2064712.

It is an arithmetic number, because the mean of its divisors is an integer number (2064712).

Almost surely, 2^4129423 is an apocalyptic number.

4129423 is a deficient number, since it is larger than the sum of its proper divisors (1).

4129423 is an equidigital number, since it uses as much as digits as its factorization.

4129423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 4129423 is about 2032.0981767621. The cubic root of 4129423 is about 160.4340169311.

The spelling of 4129423 in words is "four million, one hundred twenty-nine thousand, four hundred twenty-three".