493949 has 4 divisors (see below), whose sum is σ = 496860. Its totient is φ = 491040.

The previous prime is 493939. The next prime is 493967. The reversal of 493949 is 949394.

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 225625 + 268324 = 475^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 493949 - 2⁸ = 493693 is a prime.

It is a super-2 number, since 2×493949² = 487971229202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493919) 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, 1184 + ... + 1545.

It is an arithmetic number, because the mean of its divisors is an integer number (124215).

2⁴⁹³⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

493949 is a deficient number, since it is larger than the sum of its proper divisors (2911).

493949 is a wasteful number, since it uses less digits than its factorization.

493949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910.

The product of its digits is 34992, while the sum is 38.

The square root of 493949 is about 702.8150539082. The cubic root of 493949 is about 79.0485734504.

The spelling of 493949 in words is "four hundred ninety-three thousand, nine hundred forty-nine".