6563730 has 32 divisors (see below), whose sum is σ = 15824448. Its totient is φ = 1742400.

The previous prime is 6563729. The next prime is 6563743. The reversal of 6563730 is 373656.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9600 + ... + 10260.

It is an arithmetic number, because the mean of its divisors is an integer number (494514).

Almost surely, 2^6563730 is an apocalyptic number.

6563730 is an abundant number, since it is smaller than the sum of its proper divisors (9260718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6563730 is a wasteful number, since it uses less digits than its factorization.

6563730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 6563730 is about 2561.9777516598. The cubic root of 6563730 is about 187.2335058552.

6563730 divided by its sum of digits (30) gives a triangular number (218791 = T₆₆₁).

The spelling of 6563730 in words is "six million, five hundred sixty-three thousand, seven hundred thirty".