11509648 has 10 divisors (see below), whose sum is σ = 22299974. Its totient is φ = 5754816.

The previous prime is 11509633. The next prime is 11509651. The reversal of 11509648 is 84690511.

It can be written as a sum of positive squares in only one way, i.e., 8020224 + 3489424 = 2832^2 + 1868^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359661 + ... + 359692.

Almost surely, 2^11509648 is an apocalyptic number.

It is an amenable number.

11509648 is a deficient number, since it is larger than the sum of its proper divisors (10790326).

11509648 is an equidigital number, since it uses as much as digits as its factorization.

11509648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719361 (or 719355 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 11509648 is about 3392.5872133226. The cubic root of 11509648 is about 225.7809766231.

The spelling of 11509648 in words is "eleven million, five hundred nine thousand, six hundred forty-eight".