11813968 has 10 divisors (see below), whose sum is σ = 22889594. Its totient is φ = 5906976.

The previous prime is 11813947. The next prime is 11813969. The reversal of 11813968 is 86931811.

It can be written as a sum of positive squares in only one way, i.e., 11778624 + 35344 = 3432^2 + 188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11813969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 369171 + ... + 369202.

Almost surely, 2^11813968 is an apocalyptic number.

It is an amenable number.

11813968 is a deficient number, since it is larger than the sum of its proper divisors (11075626).

11813968 is an equidigital number, since it uses as much as digits as its factorization.

11813968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738381 (or 738375 counting only the distinct ones).

The product of its digits is 10368, while the sum is 37.

The square root of 11813968 is about 3437.1453271574. The cubic root of 11813968 is about 227.7536068123.

The spelling of 11813968 in words is "eleven million, eight hundred thirteen thousand, nine hundred sixty-eight".