11667493 has 4 divisors (see below), whose sum is σ = 11952108. Its totient is φ = 11382880.

The previous prime is 11667443. The next prime is 11667503. The reversal of 11667493 is 39476611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39476611 = 1051 ⋅37561.

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 5026564 = 2577^2 + 2242^2 .

It is a cyclic number.

It is not a de Polignac number, because 11667493 - 2¹³ = 11659301 is a prime.

It is a super-2 number, since 2×11667493² = 272260785810098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11667413) 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, 142246 + ... + 142327.

It is an arithmetic number, because the mean of its divisors is an integer number (2988027).

Almost surely, 2^11667493 is an apocalyptic number.

It is an amenable number.

11667493 is a deficient number, since it is larger than the sum of its proper divisors (284615).

11667493 is an equidigital number, since it uses as much as digits as its factorization.

11667493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284614.

The product of its digits is 27216, while the sum is 37.

The square root of 11667493 is about 3415.7712159921. The cubic root of 11667493 is about 226.8084251179.

The spelling of 11667493 in words is "eleven million, six hundred sixty-seven thousand, four hundred ninety-three".