4343999923 has 2 divisors, whose sum is σ = 4343999924. Its totient is φ = 4343999922.

The previous prime is 4343999921. The next prime is 4343999993. The reversal of 4343999923 is 3299993434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4343999923 - 2¹ = 4343999921 is a prime.

Together with 4343999921, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4343999921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2171999961 + 2171999962.

It is an arithmetic number, because the mean of its divisors is an integer number (2171999962).

Almost surely, 2^4343999923 is an apocalyptic number.

4343999923 is a deficient number, since it is larger than the sum of its proper divisors (1).

4343999923 is an equidigital number, since it uses as much as digits as its factorization.

4343999923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5668704, while the sum is 55.

The square root of 4343999923 is about 65909.0276289978. The cubic root of 4343999923 is about 1631.6610118435.

The spelling of 4343999923 in words is "four billion, three hundred forty-three million, nine hundred ninety-nine thousand, nine hundred twenty-three".