116779489 has 2 divisors, whose sum is σ = 116779490. Its totient is φ = 116779488.

The previous prime is 116779471. The next prime is 116779499. The reversal of 116779489 is 984977611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105165025 + 11614464 = 10255^2 + 3408^2 .

It is an emirp because it is prime and its reverse (984977611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116779489 - 2⁵ = 116779457 is a prime.

It is a super-2 number, since 2×116779489² = 27274898102202242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (116779499) 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 as a sum of consecutive naturals, namely, 58389744 + 58389745.

It is an arithmetic number, because the mean of its divisors is an integer number (58389745).

Almost surely, 2^116779489 is an apocalyptic number.

It is an amenable number.

116779489 is a deficient number, since it is larger than the sum of its proper divisors (1).

116779489 is an equidigital number, since it uses as much as digits as its factorization.

116779489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 52.

The square root of 116779489 is about 10806.4558945105. The cubic root of 116779489 is about 488.7898626357.

It can be divided in two parts, 1167 and 79489, that added together give a square (80656 = 284²).

The spelling of 116779489 in words is "one hundred sixteen million, seven hundred seventy-nine thousand, four hundred eighty-nine".