116669389 has 2 divisors, whose sum is σ = 116669390. Its totient is φ = 116669388.

The previous prime is 116669383. The next prime is 116669429. The reversal of 116669389 is 983966611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76562500 + 40106889 = 8750^2 + 6333^2 .

It is a cyclic number.

It is not a de Polignac number, because 116669389 - 2¹⁵ = 116636621 is a prime.

It is a super-2 number, since 2×116669389² = 27223492659266642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116669383) 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, 58334694 + 58334695.

It is an arithmetic number, because the mean of its divisors is an integer number (58334695).

Almost surely, 2^116669389 is an apocalyptic number.

It is an amenable number.

116669389 is a deficient number, since it is larger than the sum of its proper divisors (1).

116669389 is an equidigital number, since it uses as much as digits as its factorization.

116669389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 49.

The square root of 116669389 is about 10801.3605161572. The cubic root of 116669389 is about 488.6362035592.

The spelling of 116669389 in words is "one hundred sixteen million, six hundred sixty-nine thousand, three hundred eighty-nine".