429621 has 8 divisors (see below), whose sum is σ = 581184. Its totient is φ = 282240.

The previous prime is 429599. The next prime is 429631. The reversal of 429621 is 126924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 429621 - 2⁵ = 429589 is a prime.

429621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 429591 and 429600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (72648).

2⁴²⁹⁶²¹ is an apocalyptic number.

It is an amenable number.

429621 is a deficient number, since it is larger than the sum of its proper divisors (151563).

429621 is a wasteful number, since it uses less digits than its factorization.

429621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091.

The product of its digits is 864, while the sum is 24.

The square root of 429621 is about 655.4548039339. The cubic root of 429621 is about 75.4562411809.

The spelling of 429621 in words is "four hundred twenty-nine thousand, six hundred twenty-one".