493548905 has 16 divisors (see below), whose sum is σ = 596456784. Its totient is φ = 392052480.

The previous prime is 493548863. The next prime is 493548907. The reversal of 493548905 is 509845394.

It can be written as a sum of positive squares in 8 ways, for example, as 160376896 + 333172009 = 12664^2 + 18253^2 .

It is not a de Polignac number, because 493548905 - 2¹⁶ = 493483369 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 493548905.

It is not an unprimeable number, because it can be changed into a prime (493548907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638099 + ... + 638871.

It is an arithmetic number, because the mean of its divisors is an integer number (37278549).

Almost surely, 2^493548905 is an apocalyptic number.

It is an amenable number.

493548905 is a deficient number, since it is larger than the sum of its proper divisors (102907879).

493548905 is a wasteful number, since it uses less digits than its factorization.

493548905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 493548905 is about 22215.9605914307. The cubic root of 493548905 is about 790.2722476731.

The spelling of 493548905 in words is "four hundred ninety-three million, five hundred forty-eight thousand, nine hundred five".