11577649 has 4 divisors (see below), whose sum is σ = 11666160. Its totient is φ = 11489140.

The previous prime is 11577647. The next prime is 11577659. The reversal of 11577649 is 94677511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11577649 - 2¹ = 11577647 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11577647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44059 + ... + 44320.

It is an arithmetic number, because the mean of its divisors is an integer number (2916540).

Almost surely, 2^11577649 is an apocalyptic number.

It is an amenable number.

11577649 is a deficient number, since it is larger than the sum of its proper divisors (88511).

11577649 is an equidigital number, since it uses as much as digits as its factorization.

11577649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88510.

The product of its digits is 52920, while the sum is 40.

The square root of 11577649 is about 3402.5944512974. The cubic root of 11577649 is about 226.2247548728.

The spelling of 11577649 in words is "eleven million, five hundred seventy-seven thousand, six hundred forty-nine".