426631173 has 16 divisors (see below), whose sum is σ = 581748480. Its totient is φ = 277984256.

The previous prime is 426631159. The next prime is 426631217. The reversal of 426631173 is 371136624.

It is a cyclic number.

It is not a de Polignac number, because 426631173 - 2⁴ = 426631157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426631573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129361 + ... + 132617.

It is an arithmetic number, because the mean of its divisors is an integer number (36359280).

Almost surely, 2^426631173 is an apocalyptic number.

It is an amenable number.

426631173 is a deficient number, since it is larger than the sum of its proper divisors (155117307).

426631173 is a wasteful number, since it uses less digits than its factorization.

426631173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4236.

The product of its digits is 18144, while the sum is 33.

The square root of 426631173 is about 20655.0519970297. The cubic root of 426631173 is about 752.8079470140.

Adding to 426631173 its reverse (371136624), we get a palindrome (797767797).

The spelling of 426631173 in words is "four hundred twenty-six million, six hundred thirty-one thousand, one hundred seventy-three".