424705 has 12 divisors (see below), whose sum is σ = 533052. Its totient is φ = 324800.

The previous prime is 424693. The next prime is 424709. The reversal of 424705 is 507424.

It can be written as a sum of positive squares in 6 ways, for example, as 25281 + 399424 = 159^2 + 632^2 .

It is not a de Polignac number, because 424705 - 2⁷ = 424577 is a prime.

It is a Duffinian number.

424705 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4155 + ... + 4255.

It is an arithmetic number, because the mean of its divisors is an integer number (44421).

2⁴²⁴⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

424705 is a deficient number, since it is larger than the sum of its proper divisors (108347).

424705 is a wasteful number, since it uses less digits than its factorization.

424705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 424705 is about 651.6939465731. The cubic root of 424705 is about 75.1673301012.

The spelling of 424705 in words is "four hundred twenty-four thousand, seven hundred five".