11567671 has 4 divisors (see below), whose sum is σ = 11626000. Its totient is φ = 11509344.

The previous prime is 11567669. The next prime is 11567683. The reversal of 11567671 is 17676511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17676511 = 563 ⋅31397.

It is a cyclic number.

It is not a de Polignac number, because 11567671 - 2¹ = 11567669 is a prime.

It is a super-2 number, since 2×11567671² = 267622024728482, 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 (11567641) 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, 28866 + ... + 29263.

It is an arithmetic number, because the mean of its divisors is an integer number (2906500).

Almost surely, 2^11567671 is an apocalyptic number.

11567671 is a deficient number, since it is larger than the sum of its proper divisors (58329).

11567671 is an equidigital number, since it uses as much as digits as its factorization.

11567671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58328.

The product of its digits is 8820, while the sum is 34.

The square root of 11567671 is about 3401.1279011528. The cubic root of 11567671 is about 226.1597468739.

The spelling of 11567671 in words is "eleven million, five hundred sixty-seven thousand, six hundred seventy-one".