116721747 has 6 divisors (see below), whose sum is σ = 168598092. Its totient is φ = 77814492.

The previous prime is 116721733. The next prime is 116721751. The reversal of 116721747 is 747127611.

It is not a de Polignac number, because 116721747 - 2¹² = 116717651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116221747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6484533 + ... + 6484550.

It is an arithmetic number, because the mean of its divisors is an integer number (28099682).

Almost surely, 2^116721747 is an apocalyptic number.

116721747 is a deficient number, since it is larger than the sum of its proper divisors (51876345).

116721747 is a wasteful number, since it uses less digits than its factorization.

116721747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12969089 (or 12969086 counting only the distinct ones).

The product of its digits is 16464, while the sum is 36.

The square root of 116721747 is about 10803.7839204605. The cubic root of 116721747 is about 488.7092881057.

The spelling of 116721747 in words is "one hundred sixteen million, seven hundred twenty-one thousand, seven hundred forty-seven".