11676591 has 6 divisors (see below), whose sum is σ = 16866200. Its totient is φ = 7784388.

The previous prime is 11676563. The next prime is 11676593. The reversal of 11676591 is 19567611.

It is a happy number.

11676591 is a `hidden beast` number, since 1 + 1 + 67 + 6 + 591 = 666.

It is not a de Polignac number, because 11676591 - 2⁷ = 11676463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11676593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 648691 + ... + 648708.

Almost surely, 2^11676591 is an apocalyptic number.

11676591 is a deficient number, since it is larger than the sum of its proper divisors (5189609).

11676591 is a wasteful number, since it uses less digits than its factorization.

11676591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297405 (or 1297402 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 11676591 is about 3417.1027201417. The cubic root of 11676591 is about 226.8673628556.

The spelling of 11676591 in words is "eleven million, six hundred seventy-six thousand, five hundred ninety-one".