7428003 has 32 divisors (see below), whose sum is σ = 11446272. Its totient is φ = 4243200.

The previous prime is 7427977. The next prime is 7428007. The reversal of 7428003 is 3008247.

It is not a de Polignac number, because 7428003 - 2⁶ = 7427939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7428007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54151 + ... + 54287.

It is an arithmetic number, because the mean of its divisors is an integer number (357696).

Almost surely, 2^7428003 is an apocalyptic number.

7428003 is a deficient number, since it is larger than the sum of its proper divisors (4018269).

7428003 is a wasteful number, since it uses less digits than its factorization.

7428003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 7428003 is about 2725.4362953480. The cubic root of 7428003 is about 195.1150143320.

The spelling of 7428003 in words is "seven million, four hundred twenty-eight thousand, three".