11667859 has 8 divisors (see below), whose sum is σ = 13374720. Its totient is φ = 9971016.

The previous prime is 11667833. The next prime is 11667863. The reversal of 11667859 is 95876611.

It is a happy number.

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 11667859 - 2⁷ = 11667731 is a prime.

It is a super-2 number, since 2×11667859² = 272277867287762, which contains 22 as substring.

It is a Duffinian number.

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, 192 + ... + 4834.

It is an arithmetic number, because the mean of its divisors is an integer number (1671840).

Almost surely, 2^11667859 is an apocalyptic number.

11667859 is a deficient number, since it is larger than the sum of its proper divisors (1706861).

11667859 is an equidigital number, since it uses as much as digits as its factorization.

11667859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009.

The product of its digits is 90720, while the sum is 43.

The square root of 11667859 is about 3415.8247905887. The cubic root of 11667859 is about 226.8107966932.

It can be divided in two parts, 1166 and 7859, that added together give a square (9025 = 95²).

The spelling of 11667859 in words is "eleven million, six hundred sixty-seven thousand, eight hundred fifty-nine".