423526039 has 2 divisors, whose sum is σ = 423526040. Its totient is φ = 423526038.

The previous prime is 423526001. The next prime is 423526091. The reversal of 423526039 is 930625324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423526039 - 2¹⁵ = 423493271 is a prime.

It is a super-2 number, since 2×423526039² = 358748611422059042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423525995 and 423526013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423526139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211763019 + 211763020.

It is an arithmetic number, because the mean of its divisors is an integer number (211763020).

Almost surely, 2^423526039 is an apocalyptic number.

423526039 is a deficient number, since it is larger than the sum of its proper divisors (1).

423526039 is an equidigital number, since it uses as much as digits as its factorization.

423526039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 423526039 is about 20579.7482734848. The cubic root of 423526039 is about 750.9771199109.

The spelling of 423526039 in words is "four hundred twenty-three million, five hundred twenty-six thousand, thirty-nine".