116689439 has 2 divisors, whose sum is σ = 116689440. Its totient is φ = 116689438.

The previous prime is 116689409. The next prime is 116689459. The reversal of 116689439 is 934986611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116689439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 116689393 and 116689402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116689409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58344719 + 58344720.

It is an arithmetic number, because the mean of its divisors is an integer number (58344720).

Almost surely, 2^116689439 is an apocalyptic number.

116689439 is a deficient number, since it is larger than the sum of its proper divisors (1).

116689439 is an equidigital number, since it uses as much as digits as its factorization.

116689439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 116689439 is about 10802.2886001069. The cubic root of 116689439 is about 488.6641931767.

The spelling of 116689439 in words is "one hundred sixteen million, six hundred eighty-nine thousand, four hundred thirty-nine".