116667889 has 8 divisors (see below), whose sum is σ = 133033320. Its totient is φ = 101358336.

The previous prime is 116667883. The next prime is 116667907. The reversal of 116667889 is 988766611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27889 + 116640000 = 167^2 + 10800^2 .

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 116667889 - 2⁵ = 116667857 is a prime.

It is a super-2 number, since 2×116667889² = 27222792647432642, 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 (116667883) 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, 263734 + ... + 264175.

It is an arithmetic number, because the mean of its divisors is an integer number (16629165).

Almost surely, 2^116667889 is an apocalyptic number.

It is an amenable number.

116667889 is a deficient number, since it is larger than the sum of its proper divisors (16365431).

116667889 is a wasteful number, since it uses less digits than its factorization.

116667889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527939.

The product of its digits is 870912, while the sum is 52.

The square root of 116667889 is about 10801.2910802367. The cubic root of 116667889 is about 488.6341094439.

The spelling of 116667889 in words is "one hundred sixteen million, six hundred sixty-seven thousand, eight hundred eighty-nine".