116619869 has 2 divisors, whose sum is σ = 116619870. Its totient is φ = 116619868.

The previous prime is 116619829. The next prime is 116619907. The reversal of 116619869 is 968916611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96924025 + 19695844 = 9845^2 + 4438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116619869 is a prime.

It is a super-2 number, since 2×116619869² = 27200387691154322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116619829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58309934 + 58309935.

It is an arithmetic number, because the mean of its divisors is an integer number (58309935).

Almost surely, 2^116619869 is an apocalyptic number.

It is an amenable number.

116619869 is a deficient number, since it is larger than the sum of its proper divisors (1).

116619869 is an equidigital number, since it uses as much as digits as its factorization.

116619869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 47.

The square root of 116619869 is about 10799.0679690425. The cubic root of 116619869 is about 488.5670603466.

The spelling of 116619869 in words is "one hundred sixteen million, six hundred nineteen thousand, eight hundred sixty-nine".