11869538 has 4 divisors (see below), whose sum is σ = 17804310. Its totient is φ = 5934768.

The previous prime is 11869537. The next prime is 11869549. The reversal of 11869538 is 83596811.

11869538 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 an emirpimes, since its reverse is a distinct semiprime: 83596811 = 347 ⋅240913.

It can be written as a sum of positive squares in only one way, i.e., 11175649 + 693889 = 3343^2 + 833^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11869495 and 11869504.

It is not an unprimeable number, because it can be changed into a prime (11869531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2967383 + ... + 2967386.

Almost surely, 2^11869538 is an apocalyptic number.

11869538 is a deficient number, since it is larger than the sum of its proper divisors (5934772).

11869538 is an equidigital number, since it uses as much as digits as its factorization.

11869538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5934771.

The product of its digits is 51840, while the sum is 41.

The square root of 11869538 is about 3445.2195866156. The cubic root of 11869538 is about 228.1101473535.

The spelling of 11869538 in words is "eleven million, eight hundred sixty-nine thousand, five hundred thirty-eight".