4478387 has 2 divisors, whose sum is σ = 4478388. Its totient is φ = 4478386.

The previous prime is 4478381. The next prime is 4478413. The reversal of 4478387 is 7838744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4478387 - 2⁶ = 4478323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4478381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2239193 + 2239194.

It is an arithmetic number, because the mean of its divisors is an integer number (2239194).

Almost surely, 2^4478387 is an apocalyptic number.

4478387 is a deficient number, since it is larger than the sum of its proper divisors (1).

4478387 is an equidigital number, since it uses as much as digits as its factorization.

4478387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 41.

The square root of 4478387 is about 2116.2199791137. The cubic root of 4478387 is about 164.8316249948.

The spelling of 4478387 in words is "four million, four hundred seventy-eight thousand, three hundred eighty-seven".