4778403 has 16 divisors (see below), whose sum is σ = 7338240. Its totient is φ = 2709216.

The previous prime is 4778399. The next prime is 4778407. The reversal of 4778403 is 3048774.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4778399) and next prime (4778407).

It is not a de Polignac number, because 4778403 - 2² = 4778399 is a prime.

4778403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4778407) 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 in 15 ways as a sum of consecutive naturals, for example, 2101 + ... + 3737.

It is an arithmetic number, because the mean of its divisors is an integer number (458640).

Almost surely, 2^4778403 is an apocalyptic number.

4778403 is a deficient number, since it is larger than the sum of its proper divisors (2559837).

4778403 is a wasteful number, since it uses less digits than its factorization.

4778403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 4778403 is about 2185.9558549980. The cubic root of 4778403 is about 168.4331580132.

The spelling of 4778403 in words is "four million, seven hundred seventy-eight thousand, four hundred three".