493278973 has 4 divisors (see below), whose sum is σ = 538122528. Its totient is φ = 448435420.

The previous prime is 493278971. The next prime is 493278977. The reversal of 493278973 is 379872394.

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.

It is a cyclic number.

It is not a de Polignac number, because 493278973 - 2¹ = 493278971 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 493278973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493278971) 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, 22421761 + ... + 22421782.

It is an arithmetic number, because the mean of its divisors is an integer number (134530632).

Almost surely, 2^493278973 is an apocalyptic number.

It is an amenable number.

493278973 is a deficient number, since it is larger than the sum of its proper divisors (44843555).

493278973 is a wasteful number, since it uses less digits than its factorization.

493278973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44843554.

The product of its digits is 2286144, while the sum is 52.

The square root of 493278973 is about 22209.8845787185. The cubic root of 493278973 is about 790.1281493762.

The spelling of 493278973 in words is "four hundred ninety-three million, two hundred seventy-eight thousand, nine hundred seventy-three".