83808713 has 4 divisors (see below), whose sum is σ = 84592080. Its totient is φ = 83025348.

The previous prime is 83808707. The next prime is 83808727. The reversal of 83808713 is 31780838.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83808713 - 2¹⁴ = 83792329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83808313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391523 + ... + 391736.

It is an arithmetic number, because the mean of its divisors is an integer number (21148020).

Almost surely, 2^83808713 is an apocalyptic number.

It is an amenable number.

83808713 is a deficient number, since it is larger than the sum of its proper divisors (783367).

83808713 is a wasteful number, since it uses less digits than its factorization.

83808713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783366.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 83808713 is about 9154.7098807117. The cubic root of 83808713 is about 437.6192228002.

The spelling of 83808713 in words is "eighty-three million, eight hundred eight thousand, seven hundred thirteen".