494249983 has 4 divisors (see below), whose sum is σ = 520263160. Its totient is φ = 468236808.

The previous prime is 494249971. The next prime is 494249989. The reversal of 494249983 is 389942494.

It is a happy number.

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 494249983 - 2⁹ = 494249471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 494249983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494249989) 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, 13006560 + ... + 13006597.

It is an arithmetic number, because the mean of its divisors is an integer number (130065790).

Almost surely, 2^494249983 is an apocalyptic number.

494249983 is a deficient number, since it is larger than the sum of its proper divisors (26013177).

494249983 is a wasteful number, since it uses less digits than its factorization.

494249983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26013176.

The product of its digits is 2239488, while the sum is 52.

The square root of 494249983 is about 22231.7336930794. The cubic root of 494249983 is about 790.6462601583.

The spelling of 494249983 in words is "four hundred ninety-four million, two hundred forty-nine thousand, nine hundred eighty-three".