4223951 has 4 divisors (see below), whose sum is σ = 4229232. Its totient is φ = 4218672.

The previous prime is 4223911. The next prime is 4223959. The reversal of 4223951 is 1593224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4223951 - 2¹⁰ = 4222927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4223951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4223959) 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, 1166 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (1057308).

Almost surely, 2^4223951 is an apocalyptic number.

4223951 is a deficient number, since it is larger than the sum of its proper divisors (5281).

4223951 is an equidigital number, since it uses as much as digits as its factorization.

4223951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280.

The product of its digits is 2160, while the sum is 26.

The square root of 4223951 is about 2055.2252917868. The cubic root of 4223951 is about 161.6489757569.

The spelling of 4223951 in words is "four million, two hundred twenty-three thousand, nine hundred fifty-one".