11878589 has 2 divisors, whose sum is σ = 11878590. Its totient is φ = 11878588.

The previous prime is 11878583. The next prime is 11878609. The reversal of 11878589 is 98587811.

11878589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8602489 + 3276100 = 2933^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 11878589 - 2⁸ = 11878333 is a prime.

It is a super-2 number, since 2×11878589² = 282201753261842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11878583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5939294 + 5939295.

It is an arithmetic number, because the mean of its divisors is an integer number (5939295).

Almost surely, 2^11878589 is an apocalyptic number.

It is an amenable number.

11878589 is a deficient number, since it is larger than the sum of its proper divisors (1).

11878589 is an equidigital number, since it uses as much as digits as its factorization.

11878589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 47.

The square root of 11878589 is about 3446.5328955343. The cubic root of 11878589 is about 228.1681136754.

The spelling of 11878589 in words is "eleven million, eight hundred seventy-eight thousand, five hundred eighty-nine".