11667789 has 24 divisors (see below), whose sum is σ = 19393920. Its totient is φ = 6621408.

The previous prime is 11667731. The next prime is 11667793. The reversal of 11667789 is 98776611.

11667789 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 11667789 - 2¹¹ = 11665741 is a prime.

It is a super-2 number, since 2×11667789² = 272274600297042, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11667289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9967 + ... + 11075.

It is an arithmetic number, because the mean of its divisors is an integer number (808080).

Almost surely, 2^11667789 is an apocalyptic number.

It is an amenable number.

11667789 is a deficient number, since it is larger than the sum of its proper divisors (7726131).

11667789 is a wasteful number, since it uses less digits than its factorization.

11667789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1286 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 11667789 is about 3415.8145441461. The cubic root of 11667789 is about 226.8103431170.

The spelling of 11667789 in words is "eleven million, six hundred sixty-seven thousand, seven hundred eighty-nine".