4421629 has 4 divisors (see below), whose sum is σ = 4432320. Its totient is φ = 4410940.

The previous prime is 4421621. The next prime is 4421633. The reversal of 4421629 is 9261244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4421629 - 2³ = 4421621 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 4421597 and 4421606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4699 + ... + 5560.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 2^4421629 is an apocalyptic number.

It is an amenable number.

4421629 is a deficient number, since it is larger than the sum of its proper divisors (10691).

4421629 is a wasteful number, since it uses less digits than its factorization.

4421629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10690.

The product of its digits is 3456, while the sum is 28.

The square root of 4421629 is about 2102.7669866155. The cubic root of 4421629 is about 164.1323168732.

It can be divided in two parts, 4421 and 629, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4421629 in words is "four million, four hundred twenty-one thousand, six hundred twenty-nine".