493975549 has 4 divisors (see below), whose sum is σ = 494032864. Its totient is φ = 493918236.

The previous prime is 493975519. The next prime is 493975571. The reversal of 493975549 is 945579394.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 493975549 - 2²¹ = 491878397 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 493975549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493975519) 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, 12807 + ... + 33940.

It is an arithmetic number, because the mean of its divisors is an integer number (123508216).

Almost surely, 2^493975549 is an apocalyptic number.

It is an amenable number.

493975549 is a deficient number, since it is larger than the sum of its proper divisors (57315).

493975549 is a wasteful number, since it uses less digits than its factorization.

493975549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57314.

The product of its digits is 6123600, while the sum is 55.

The square root of 493975549 is about 22225.5607128369. The cubic root of 493975549 is about 790.4998967152.

It can be divided in two parts, 49397 and 5549, that added together give a triangular number (54946 = T₃₃₁).

The spelling of 493975549 in words is "four hundred ninety-three million, nine hundred seventy-five thousand, five hundred forty-nine".