116678999 has 4 divisors (see below), whose sum is σ = 116785320. Its totient is φ = 116572680.

The previous prime is 116678987. The next prime is 116679029. The reversal of 116678999 is 999876611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116678999 - 2⁴ = 116678983 is a prime.

It is a super-2 number, since 2×116678999² = 27227977615284002, which contains 22 as substring.

It is a Duffinian number.

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 (116671999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51497 + ... + 53714.

It is an arithmetic number, because the mean of its divisors is an integer number (29196330).

Almost surely, 2^116678999 is an apocalyptic number.

116678999 is a deficient number, since it is larger than the sum of its proper divisors (106321).

116678999 is a wasteful number, since it uses less digits than its factorization.

116678999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106320.

The product of its digits is 1469664, while the sum is 56.

The square root of 116678999 is about 10801.8053583649. The cubic root of 116678999 is about 488.6496194319.

The spelling of 116678999 in words is "one hundred sixteen million, six hundred seventy-eight thousand, nine hundred ninety-nine".