43425623 has 2 divisors, whose sum is σ = 43425624. Its totient is φ = 43425622.

The previous prime is 43425619. The next prime is 43425643. The reversal of 43425623 is 32652434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43425623 - 2² = 43425619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43425643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21712811 + 21712812.

It is an arithmetic number, because the mean of its divisors is an integer number (21712812).

Almost surely, 2^43425623 is an apocalyptic number.

43425623 is a deficient number, since it is larger than the sum of its proper divisors (1).

43425623 is an equidigital number, since it uses as much as digits as its factorization.

43425623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 29.

The square root of 43425623 is about 6589.8120610530. The cubic root of 43425623 is about 351.4919252954.

The spelling of 43425623 in words is "forty-three million, four hundred twenty-five thousand, six hundred twenty-three".