42475723 has 2 divisors, whose sum is σ = 42475724. Its totient is φ = 42475722.

The previous prime is 42475711. The next prime is 42475739. The reversal of 42475723 is 32757424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42475723 - 2⁹ = 42475211 is a prime.

It is not a weakly prime, because it can be changed into another prime (42475793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21237861 + 21237862.

It is an arithmetic number, because the mean of its divisors is an integer number (21237862).

Almost surely, 2^42475723 is an apocalyptic number.

42475723 is a deficient number, since it is larger than the sum of its proper divisors (1).

42475723 is an equidigital number, since it uses as much as digits as its factorization.

42475723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 34.

The square root of 42475723 is about 6517.3401783243. The cubic root of 42475723 is about 348.9101418071.

The spelling of 42475723 in words is "forty-two million, four hundred seventy-five thousand, seven hundred twenty-three".