83689423 has 2 divisors, whose sum is σ = 83689424. Its totient is φ = 83689422.

The previous prime is 83689409. The next prime is 83689483. The reversal of 83689423 is 32498638.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83689423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83689423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83689483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41844711 + 41844712.

It is an arithmetic number, because the mean of its divisors is an integer number (41844712).

Almost surely, 2^83689423 is an apocalyptic number.

83689423 is a deficient number, since it is larger than the sum of its proper divisors (1).

83689423 is an equidigital number, since it uses as much as digits as its factorization.

83689423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The square root of 83689423 is about 9148.1923351010. The cubic root of 83689423 is about 437.4114942599.

The spelling of 83689423 in words is "eighty-three million, six hundred eighty-nine thousand, four hundred twenty-three".