6509630 has 16 divisors (see below), whose sum is σ = 12121920. Its totient is φ = 2513952.

The previous prime is 6509617. The next prime is 6509677. The reversal of 6509630 is 369056.

It is a Harshad number since it is a multiple of its sum of digits (29).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6509593 and 6509602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10934 + ... + 11513.

It is an arithmetic number, because the mean of its divisors is an integer number (757620).

Almost surely, 2^6509630 is an apocalyptic number.

6509630 is a deficient number, since it is larger than the sum of its proper divisors (5612290).

6509630 is a wasteful number, since it uses less digits than its factorization.

6509630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22483.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 6509630 is about 2551.3976561877. The cubic root of 6509630 is about 186.7176766772.

The spelling of 6509630 in words is "six million, five hundred nine thousand, six hundred thirty".