4223969 has 4 divisors (see below), whose sum is σ = 4229040. Its totient is φ = 4218900.

The previous prime is 4223963. The next prime is 4223977. The reversal of 4223969 is 9693224.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4223969 is a prime.

It is a super-2 number, since 2×4223969² = 35683828225922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁴ + 2⁵ + 2²¹ + 3¹³ + 9³ + 6² + 9⁶ .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4223963) 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, 959 + ... + 3060.

It is an arithmetic number, because the mean of its divisors is an integer number (1057260).

Almost surely, 2^4223969 is an apocalyptic number.

It is an amenable number.

4223969 is a deficient number, since it is larger than the sum of its proper divisors (5071).

4223969 is a wasteful number, since it uses less digits than its factorization.

4223969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070.

The product of its digits is 23328, while the sum is 35.

The square root of 4223969 is about 2055.2296708641. The cubic root of 4223969 is about 161.6492053743.

The spelling of 4223969 in words is "four million, two hundred twenty-three thousand, nine hundred sixty-nine".