42263873 has 2 divisors, whose sum is σ = 42263874. Its totient is φ = 42263872.

The previous prime is 42263867. The next prime is 42263899. The reversal of 42263873 is 37836224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25877569 + 16386304 = 5087^2 + 4048^2 .

It is a cyclic number.

It is not a de Polignac number, because 42263873 - 2¹⁰ = 42262849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42263813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21131936 + 21131937.

It is an arithmetic number, because the mean of its divisors is an integer number (21131937).

Almost surely, 2^42263873 is an apocalyptic number.

It is an amenable number.

42263873 is a deficient number, since it is larger than the sum of its proper divisors (1).

42263873 is an equidigital number, since it uses as much as digits as its factorization.

42263873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 35.

The square root of 42263873 is about 6501.0670662592. The cubic root of 42263873 is about 348.3291052551.

The spelling of 42263873 in words is "forty-two million, two hundred sixty-three thousand, eight hundred seventy-three".