11667071 has 4 divisors (see below), whose sum is σ = 12564552. Its totient is φ = 10769592.

The previous prime is 11667037. The next prime is 11667101. The reversal of 11667071 is 17076611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17076611 = 19 ⋅898769.

It is a cyclic number.

It is not a de Polignac number, because 11667071 - 2¹⁰ = 11666047 is a prime.

It is a super-2 number, since 2×11667071² = 272241091438082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11667011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 448721 + ... + 448746.

It is an arithmetic number, because the mean of its divisors is an integer number (3141138).

Almost surely, 2^11667071 is an apocalyptic number.

11667071 is a deficient number, since it is larger than the sum of its proper divisors (897481).

11667071 is an equidigital number, since it uses as much as digits as its factorization.

11667071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897480.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 11667071 is about 3415.7094431465. The cubic root of 11667071 is about 226.8056906170.

The spelling of 11667071 in words is "eleven million, six hundred sixty-seven thousand, seventy-one".