11667899 has 8 divisors (see below), whose sum is σ = 12564720. Its totient is φ = 10794496.

The previous prime is 11667883. The next prime is 11667907. The reversal of 11667899 is 99876611.

11667899 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11667899 - 2⁴ = 11667883 is a prime.

It is a super-2 number, since 2×11667899² = 272279734148402, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11667829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4814 + ... + 6819.

It is an arithmetic number, because the mean of its divisors is an integer number (1570590).

Almost surely, 2^11667899 is an apocalyptic number.

11667899 is a deficient number, since it is larger than the sum of its proper divisors (896821).

11667899 is a wasteful number, since it uses less digits than its factorization.

11667899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11709.

The product of its digits is 163296, while the sum is 47.

The square root of 11667899 is about 3415.8306456849. The cubic root of 11667899 is about 226.8110558787.

The spelling of 11667899 in words is "eleven million, six hundred sixty-seven thousand, eight hundred ninety-nine".