493949999 has 4 divisors (see below), whose sum is σ = 495416064. Its totient is φ = 492483936.

The previous prime is 493949971. The next prime is 493950019. The reversal of 493949999 is 999949394.

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

It is a cyclic number.

It is not a de Polignac number, because 493949999 - 2¹⁶ = 493884463 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 (493949969) 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, 732527 + ... + 733200.

It is an arithmetic number, because the mean of its divisors is an integer number (123854016).

Almost surely, 2^493949999 is an apocalyptic number.

493949999 is a deficient number, since it is larger than the sum of its proper divisors (1466065).

493949999 is a wasteful number, since it uses less digits than its factorization.

493949999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466064.

The product of its digits is 25509168, while the sum is 65.

The square root of 493949999 is about 22224.9859167559. The cubic root of 493949999 is about 790.4862674167.

The spelling of 493949999 in words is "four hundred ninety-three million, nine hundred forty-nine thousand, nine hundred ninety-nine".