83718369 has 12 divisors (see below), whose sum is σ = 138201856. Its totient is φ = 47839032.

The previous prime is 83718361. The next prime is 83718373. The reversal of 83718369 is 96381738.

It is a happy number.

It is not a de Polignac number, because 83718369 - 2³ = 83718361 is a prime.

It is a super-2 number, since 2×83718369² = 14017530616040322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83718361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 664369 + ... + 664494.

Almost surely, 2^83718369 is an apocalyptic number.

It is an amenable number.

83718369 is a deficient number, since it is larger than the sum of its proper divisors (54483487).

83718369 is a wasteful number, since it uses less digits than its factorization.

83718369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328876 (or 1328873 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 83718369 is about 9149.7742595104. The cubic root of 83718369 is about 437.4619182091.

The spelling of 83718369 in words is "eighty-three million, seven hundred eighteen thousand, three hundred sixty-nine".