429561 has 12 divisors (see below), whose sum is σ = 677040. Its totient is φ = 260280.

The previous prime is 429551. The next prime is 429563. The reversal of 429561 is 165924.

It is not a de Polignac number, because 429561 - 2⁵ = 429529 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (429563) 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, 2071 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (56420).

2⁴²⁹⁵⁶¹ is an apocalyptic number.

It is an amenable number.

429561 is a deficient number, since it is larger than the sum of its proper divisors (247479).

429561 is a wasteful number, since it uses less digits than its factorization.

429561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356 (or 4353 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 429561 is about 655.4090325896. The cubic root of 429561 is about 75.4527283287.

It can be divided in two parts, 4295 and 61, that added together give a square (4356 = 66²).

The spelling of 429561 in words is "four hundred twenty-nine thousand, five hundred sixty-one".