116640787 has 4 divisors (see below), whose sum is σ = 118238680. Its totient is φ = 115042896.

The previous prime is 116640781. The next prime is 116640809. The reversal of 116640787 is 787046611.

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 116640787 - 2³ = 116640779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116640781) 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, 798837 + ... + 798982.

It is an arithmetic number, because the mean of its divisors is an integer number (29559670).

Almost surely, 2^116640787 is an apocalyptic number.

116640787 is a deficient number, since it is larger than the sum of its proper divisors (1597893).

116640787 is an equidigital number, since it uses as much as digits as its factorization.

116640787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597892.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 116640787 is about 10800.0364351237. The cubic root of 116640787 is about 488.5962698769.

The spelling of 116640787 in words is "one hundred sixteen million, six hundred forty thousand, seven hundred eighty-seven".