11913604 has 6 divisors (see below), whose sum is σ = 20848814. Its totient is φ = 5956800.

The previous prime is 11913581. The next prime is 11913611. The reversal of 11913604 is 40631911.

It can be written as a sum of positive squares in only one way, i.e., 8111104 + 3802500 = 2848^2 + 1950^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1489197 + ... + 1489204.

Almost surely, 2^11913604 is an apocalyptic number.

It is an amenable number.

11913604 is a deficient number, since it is larger than the sum of its proper divisors (8935210).

11913604 is a wasteful number, since it uses less digits than its factorization.

11913604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978405 (or 2978403 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 11913604 is about 3451.6089002087. The cubic root of 11913604 is about 228.3920872241.

The spelling of 11913604 in words is "eleven million, nine hundred thirteen thousand, six hundred four".