493739 has 4 divisors (see below), whose sum is σ = 497640. Its totient is φ = 489840.

The previous prime is 493733. The next prime is 493747. The reversal of 493739 is 937394.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 937394 = 2 ⋅468697.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493739 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 493699 and 493708.

It is not an unprimeable number, because it can be changed into a prime (493733) 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, 1754 + ... + 2015.

It is an arithmetic number, because the mean of its divisors is an integer number (124410).

2⁴⁹³⁷³⁹ is an apocalyptic number.

493739 is a deficient number, since it is larger than the sum of its proper divisors (3901).

493739 is a wasteful number, since it uses less digits than its factorization.

493739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900.

The product of its digits is 20412, while the sum is 35.

The square root of 493739 is about 702.6656388354. The cubic root of 493739 is about 79.0373694911.

The spelling of 493739 in words is "four hundred ninety-three thousand, seven hundred thirty-nine".