39713 has 4 divisors (see below), whose sum is σ = 40128. Its totient is φ = 39300.

The previous prime is 39709. The next prime is 39719. The reversal of 39713 is 31793.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 39713 - 2² = 39709 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 (39719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20 + ... + 282.

It is an arithmetic number, because the mean of its divisors is an integer number (10032).

2³⁹⁷¹³ is an apocalyptic number.

It is an amenable number.

39713 is a deficient number, since it is larger than the sum of its proper divisors (415).

39713 is a wasteful number, since it uses less digits than its factorization.

39713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414.

The product of its digits is 567, while the sum is 23.

The square root of 39713 is about 199.2812083464. The cubic root of 39713 is about 34.1175286769.

The spelling of 39713 in words is "thirty-nine thousand, seven hundred thirteen".