39493 has 4 divisors (see below), whose sum is σ = 40108. Its totient is φ = 38880.

The previous prime is 39461. The next prime is 39499.

39493 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19044 + 20449 = 138^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 39493 - 2⁵ = 39461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39499) 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, 198 + ... + 343.

It is an arithmetic number, because the mean of its divisors is an integer number (10027).

2³⁹⁴⁹³ is an apocalyptic number.

It is an amenable number.

39493 is a deficient number, since it is larger than the sum of its proper divisors (615).

39493 is an equidigital number, since it uses as much as digits as its factorization.

39493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614.

The product of its digits is 2916, while the sum is 28.

The square root of 39493 is about 198.7284579521. The cubic root of 39493 is about 34.0544111478.

The spelling of 39493 in words is "thirty-nine thousand, four hundred ninety-three".