493949393 has 8 divisors (see below), whose sum is σ = 572939712. Its totient is φ = 417065616.

The previous prime is 493949363. The next prime is 493949411. The reversal of 493949393 is 393949394.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 493949393 - 2¹⁴ = 493933009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493949333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526130 + ... + 527067.

It is an arithmetic number, because the mean of its divisors is an integer number (71617464).

Almost surely, 2^493949393 is an apocalyptic number.

It is an amenable number.

493949393 is a deficient number, since it is larger than the sum of its proper divisors (78990319).

493949393 is a wasteful number, since it uses less digits than its factorization.

493949393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053271.

The product of its digits is 2834352, while the sum is 53.

The square root of 493949393 is about 22224.9722834473. The cubic root of 493949393 is about 790.4859441486.

Subtracting from 493949393 its reverse (393949394), we obtain a palindrome (99999999).

The spelling of 493949393 in words is "four hundred ninety-three million, nine hundred forty-nine thousand, three hundred ninety-three".