421627829 has 16 divisors (see below), whose sum is σ = 514988928. Its totient is φ = 336947712.

The previous prime is 421627783. The next prime is 421627831. The reversal of 421627829 is 928726124.

It is a cyclic number.

It is not a de Polignac number, because 421627829 - 2⁸ = 421627573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421627889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3824 + ... + 29289.

It is an arithmetic number, because the mean of its divisors is an integer number (32186808).

Almost surely, 2^421627829 is an apocalyptic number.

It is an amenable number.

421627829 is a deficient number, since it is larger than the sum of its proper divisors (93361099).

421627829 is a wasteful number, since it uses less digits than its factorization.

421627829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33244.

The product of its digits is 96768, while the sum is 41.

The square root of 421627829 is about 20533.5780856625. The cubic root of 421627829 is about 749.8534996817.

The spelling of 421627829 in words is "four hundred twenty-one million, six hundred twenty-seven thousand, eight hundred twenty-nine".