116639 has 2 divisors, whose sum is σ = 116640. Its totient is φ = 116638.

The previous prime is 116593. The next prime is 116657. The reversal of 116639 is 936611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 116639 - 2¹² = 112543 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 6.

It is a zygodrome in base 2 and base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58319 + 58320.

It is an arithmetic number, because the mean of its divisors is an integer number (58320).

2¹¹⁶⁶³⁹ is an apocalyptic number.

116639 is a deficient number, since it is larger than the sum of its proper divisors (1).

116639 is an equidigital number, since it uses as much as digits as its factorization.

116639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 26.

The square root of 116639 is about 341.5245232776. The cubic root of 116639 is about 48.8593774678.

The spelling of 116639 in words is "one hundred sixteen thousand, six hundred thirty-nine".