11994649 has 8 divisors (see below), whose sum is σ = 12240000. Its totient is φ = 11751792.

The previous prime is 11994637. The next prime is 11994677. The reversal of 11994649 is 94649911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11994649 - 2²³ = 3606041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11994049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11262 + ... + 12280.

It is an arithmetic number, because the mean of its divisors is an integer number (1530000).

Almost surely, 2^11994649 is an apocalyptic number.

It is an amenable number.

11994649 is a deficient number, since it is larger than the sum of its proper divisors (245351).

11994649 is a wasteful number, since it uses less digits than its factorization.

11994649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247.

The product of its digits is 69984, while the sum is 43.

The square root of 11994649 is about 3463.3291786950. The cubic root of 11994649 is about 228.9088136406.

The spelling of 11994649 in words is "eleven million, nine hundred ninety-four thousand, six hundred forty-nine".