6560998 has 4 divisors (see below), whose sum is σ = 9841500. Its totient is φ = 3280498.

The previous prime is 6560993. The next prime is 6560999. The reversal of 6560998 is 8990656.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6560993) 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, 1640248 + ... + 1640251.

It is an arithmetic number, because the mean of its divisors is an integer number (2460375).

Almost surely, 2^6560998 is an apocalyptic number.

6560998 is a deficient number, since it is larger than the sum of its proper divisors (3280502).

6560998 is a wasteful number, since it uses less digits than its factorization.

6560998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280501.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 6560998 is about 2561.4445143317. Note that the first 3 decimals coincide. The cubic root of 6560998 is about 187.2075250524.

The spelling of 6560998 in words is "six million, five hundred sixty thousand, nine hundred ninety-eight".