11577949 has 4 divisors (see below), whose sum is σ = 11860380. Its totient is φ = 11295520.

The previous prime is 11577893. The next prime is 11577959. The reversal of 11577949 is 94977511.

11577949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1060900 + 10517049 = 1030^2 + 3243^2 .

It is a cyclic number.

It is not a de Polignac number, because 11577949 - 2⁹ = 11577437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11577959) 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, 141154 + ... + 141235.

It is an arithmetic number, because the mean of its divisors is an integer number (2965095).

Almost surely, 2^11577949 is an apocalyptic number.

It is an amenable number.

11577949 is a deficient number, since it is larger than the sum of its proper divisors (282431).

11577949 is an equidigital number, since it uses as much as digits as its factorization.

11577949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282430.

The product of its digits is 79380, while the sum is 43.

The square root of 11577949 is about 3402.6385350196. The cubic root of 11577949 is about 226.2267088342.

The spelling of 11577949 in words is "eleven million, five hundred seventy-seven thousand, nine hundred forty-nine".