11667667 has 12 divisors (see below), whose sum is σ = 12913768. Its totient is φ = 10533600.

The previous prime is 11667659. The next prime is 11667673. The reversal of 11667667 is 76676611.

11667667 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11667667 - 2³ = 11667659 is a prime.

It is a super-2 number, since 2×11667667² = 272268906445778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11667637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25303 + ... + 25759.

Almost surely, 2^11667667 is an apocalyptic number.

11667667 is a deficient number, since it is larger than the sum of its proper divisors (1246101).

11667667 is a wasteful number, since it uses less digits than its factorization.

11667667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 679 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 11667667 is about 3415.7966859870. The cubic root of 11667667 is about 226.8095525943.

The spelling of 11667667 in words is "eleven million, six hundred sixty-seven thousand, six hundred sixty-seven".