6503890 has 16 divisors (see below), whose sum is σ = 12323520. Its totient is φ = 2464560.

The previous prime is 6503869. The next prime is 6503923. The reversal of 6503890 is 983056.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16926 + ... + 17305.

It is an arithmetic number, because the mean of its divisors is an integer number (770220).

Almost surely, 2^6503890 is an apocalyptic number.

6503890 is a deficient number, since it is larger than the sum of its proper divisors (5819630).

6503890 is a wasteful number, since it uses less digits than its factorization.

6503890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34257.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 6503890 is about 2550.2725344559. The cubic root of 6503890 is about 186.6627798227.

The spelling of 6503890 in words is "six million, five hundred three thousand, eight hundred ninety".