6503428 has 24 divisors (see below), whose sum is σ = 11854080. Its totient is φ = 3118560.

The previous prime is 6503423. The next prime is 6503443. The reversal of 6503428 is 8243056.

It is a junction number, because it is equal to n+sod(n) for n = 6503396 and 6503405.

It is not an unprimeable number, because it can be changed into a prime (6503423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22050 + ... + 22342.

It is an arithmetic number, because the mean of its divisors is an integer number (493920).

Almost surely, 2^6503428 is an apocalyptic number.

It is an amenable number.

6503428 is a deficient number, since it is larger than the sum of its proper divisors (5350652).

6503428 is a wasteful number, since it uses less digits than its factorization.

6503428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 6503428 is about 2550.1819542927. The cubic root of 6503428 is about 186.6583598911.

The spelling of 6503428 in words is "six million, five hundred three thousand, four hundred twenty-eight".