6513868 has 6 divisors (see below), whose sum is σ = 11399276. Its totient is φ = 3256932.

The previous prime is 6513847. The next prime is 6513869. The reversal of 6513868 is 8683156.

It is not an unprimeable number, because it can be changed into a prime (6513869) 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 as a sum of consecutive naturals, namely, 814230 + ... + 814237.

Almost surely, 2^6513868 is an apocalyptic number.

It is an amenable number.

6513868 is a deficient number, since it is larger than the sum of its proper divisors (4885408).

6513868 is a wasteful number, since it uses less digits than its factorization.

6513868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628471 (or 1628469 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 6513868 is about 2552.2280462372. The cubic root of 6513868 is about 186.7581878303.

It can be divided in two parts, 6513 and 868, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 6513868 in words is "six million, five hundred thirteen thousand, eight hundred sixty-eight".