6503642 has 8 divisors (see below), whose sum is σ = 9794196. Its totient is φ = 3238912.

The previous prime is 6503633. The next prime is 6503647. The reversal of 6503642 is 2463056.

It can be written as a sum of positive squares in 2 ways, for example, as 6497401 + 6241 = 2549^2 + 79^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6503647) 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 3 ways as a sum of consecutive naturals, for example, 5813 + ... + 6840.

Almost surely, 2^6503642 is an apocalyptic number.

6503642 is a deficient number, since it is larger than the sum of its proper divisors (3290554).

6503642 is a wasteful number, since it uses less digits than its factorization.

6503642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12912.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6503642 is about 2550.2239117379. The cubic root of 6503642 is about 186.6604072448.

Adding to 6503642 its reverse (2463056), we get a palindrome (8966698).

The spelling of 6503642 in words is "six million, five hundred three thousand, six hundred forty-two".