116689649 has 32 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 98560000.

The previous prime is 116689633. The next prime is 116689667. The reversal of 116689649 is 946986611.

It is a cyclic number.

It is not a de Polignac number, because 116689649 - 2⁴ = 116689633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 116689597 and 116689606.

It is not an unprimeable number, because it can be changed into a prime (116689609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464774 + ... + 465024.

It is an arithmetic number, because the mean of its divisors is an integer number (4286520).

Almost surely, 2^116689649 is an apocalyptic number.

It is an amenable number.

116689649 is a deficient number, since it is larger than the sum of its proper divisors (20478991).

116689649 is a wasteful number, since it uses less digits than its factorization.

116689649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361.

The product of its digits is 559872, while the sum is 50.

The square root of 116689649 is about 10802.2983202650. The cubic root of 116689649 is about 488.6644863178.

The spelling of 116689649 in words is "one hundred sixteen million, six hundred eighty-nine thousand, six hundred forty-nine".