423906541 has 2 divisors, whose sum is σ = 423906542. Its totient is φ = 423906540.

The previous prime is 423906533. The next prime is 423906589. The reversal of 423906541 is 145609324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344250916 + 79655625 = 18554^2 + 8925^2 .

It is a cyclic number.

It is not a de Polignac number, because 423906541 - 2³ = 423906533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423906497 and 423906506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423906941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211953270 + 211953271.

It is an arithmetic number, because the mean of its divisors is an integer number (211953271).

Almost surely, 2^423906541 is an apocalyptic number.

It is an amenable number.

423906541 is a deficient number, since it is larger than the sum of its proper divisors (1).

423906541 is an equidigital number, since it uses as much as digits as its factorization.

423906541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 423906541 is about 20588.9907717693. The cubic root of 423906541 is about 751.2019488777.

The spelling of 423906541 in words is "four hundred twenty-three million, nine hundred six thousand, five hundred forty-one".