11948649 has 4 divisors (see below), whose sum is σ = 15931536. Its totient is φ = 7965764.

The previous prime is 11948647. The next prime is 11948653. The reversal of 11948649 is 94684911.

11948649 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, 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 11948649 - 2¹ = 11948647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11948649.

It is not an unprimeable number, because it can be changed into a prime (11948647) 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, 1991439 + ... + 1991444.

It is an arithmetic number, because the mean of its divisors is an integer number (3982884).

Almost surely, 2^11948649 is an apocalyptic number.

It is an amenable number.

11948649 is a deficient number, since it is larger than the sum of its proper divisors (3982887).

11948649 is an equidigital number, since it uses as much as digits as its factorization.

11948649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3982886.

The product of its digits is 62208, while the sum is 42.

The square root of 11948649 is about 3456.6817903880. The cubic root of 11948649 is about 228.6158136834.

The spelling of 11948649 in words is "eleven million, nine hundred forty-eight thousand, six hundred forty-nine".