4478423 has 2 divisors, whose sum is σ = 4478424. Its totient is φ = 4478422.

The previous prime is 4478417. The next prime is 4478527. The reversal of 4478423 is 3248744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4478423 - 2⁶ = 4478359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4478423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4478413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2239211 + 2239212.

It is an arithmetic number, because the mean of its divisors is an integer number (2239212).

Almost surely, 2^4478423 is an apocalyptic number.

4478423 is a deficient number, since it is larger than the sum of its proper divisors (1).

4478423 is an equidigital number, since it uses as much as digits as its factorization.

4478423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 32.

The square root of 4478423 is about 2116.2284848286. The cubic root of 4478423 is about 164.8320666660.

The spelling of 4478423 in words is "four million, four hundred seventy-eight thousand, four hundred twenty-three".