116640923 has 8 divisors (see below), whose sum is σ = 136024800. Its totient is φ = 99977640.

The previous prime is 116640917. The next prime is 116640947. The reversal of 116640923 is 329046611.

It is not a de Polignac number, because 116640923 - 2¹⁶ = 116575387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116640923.

It is not an unprimeable number, because it can be changed into a prime (116640023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169688 + ... + 170373.

It is an arithmetic number, because the mean of its divisors is an integer number (17003100).

Almost surely, 2^116640923 is an apocalyptic number.

116640923 is a deficient number, since it is larger than the sum of its proper divisors (19383877).

116640923 is an frugal number, since it uses more digits than its factorization.

116640923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340082 (or 340068 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 116640923 is about 10800.0427313969. The cubic root of 116640923 is about 488.5964597735.

The spelling of 116640923 in words is "one hundred sixteen million, six hundred forty thousand, nine hundred twenty-three".