11887493 has 4 divisors (see below), whose sum is σ = 11894700. Its totient is φ = 11880288.

The previous prime is 11887489. The next prime is 11887507. The reversal of 11887493 is 39478811.

11887493 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 brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39478811 = 17 ⋅2322283.

It can be written as a sum of positive squares in 2 ways, for example, as 9138529 + 2748964 = 3023^2 + 1658^2 .

It is a cyclic number.

It is not a de Polignac number, because 11887493 - 2² = 11887489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11887493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11887433) 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, 233 + ... + 4881.

It is an arithmetic number, because the mean of its divisors is an integer number (2973675).

Almost surely, 2^11887493 is an apocalyptic number.

It is an amenable number.

11887493 is a deficient number, since it is larger than the sum of its proper divisors (7207).

11887493 is an equidigital number, since it uses as much as digits as its factorization.

11887493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206.

The product of its digits is 48384, while the sum is 41.

The square root of 11887493 is about 3447.8243864791. The cubic root of 11887493 is about 228.2251098241.

The spelling of 11887493 in words is "eleven million, eight hundred eighty-seven thousand, four hundred ninety-three".