116509786 has 16 divisors (see below), whose sum is σ = 184766400. Its totient is φ = 54947808.

The previous prime is 116509777. The next prime is 116509787. The reversal of 116509786 is 687905611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (116509787) 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, 2275 + ... + 15433.

It is an arithmetic number, because the mean of its divisors is an integer number (11547900).

Almost surely, 2^116509786 is an apocalyptic number.

116509786 is a deficient number, since it is larger than the sum of its proper divisors (68256614).

116509786 is a wasteful number, since it uses less digits than its factorization.

116509786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13413.

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

The square root of 116509786 is about 10793.9698906380. The cubic root of 116509786 is about 488.4132847799.

The spelling of 116509786 in words is "one hundred sixteen million, five hundred nine thousand, seven hundred eighty-six".