4421769 has 8 divisors (see below), whose sum is σ = 6431712. Its totient is φ = 2679840.

The previous prime is 4421749. The next prime is 4421771. The reversal of 4421769 is 9671244.

It is a happy number.

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

It is not a de Polignac number, because 4421769 - 2⁹ = 4421257 is a prime.

It is a super-2 number, since 2×4421769² = 39104082178722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 133993 = 4421769 / (4 + 4 + 2 + 1 + 7 + 6 + 9).

It is a Curzon number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4421719) 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, 66964 + ... + 67029.

It is an arithmetic number, because the mean of its divisors is an integer number (803964).

Almost surely, 2^4421769 is an apocalyptic number.

It is an amenable number.

4421769 is a deficient number, since it is larger than the sum of its proper divisors (2009943).

4421769 is a wasteful number, since it uses less digits than its factorization.

4421769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134007.

The product of its digits is 12096, while the sum is 33.

The square root of 4421769 is about 2102.8002758227. The cubic root of 4421769 is about 164.1340491369.

It can be divided in two parts, 442 and 1769, that added together give a triangular number (2211 = T₆₆).

The spelling of 4421769 in words is "four million, four hundred twenty-one thousand, seven hundred sixty-nine".