493079905 has 4 divisors (see below), whose sum is σ = 591695892. Its totient is φ = 394463920.

The previous prime is 493079903. The next prime is 493079927. The reversal of 493079905 is 509970394.

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

It can be written as a sum of positive squares in 2 ways, for example, as 343286784 + 149793121 = 18528^2 + 12239^2 .

It is not a de Polignac number, because 493079905 - 2¹ = 493079903 is a prime.

It is a super-4 number, since 4×493079905⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493079903) 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, 49307986 + ... + 49307995.

It is an arithmetic number, because the mean of its divisors is an integer number (147923973).

Almost surely, 2^493079905 is an apocalyptic number.

It is an amenable number.

493079905 is a deficient number, since it is larger than the sum of its proper divisors (98615987).

493079905 is an equidigital number, since it uses as much as digits as its factorization.

493079905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98615986.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 493079905 is about 22205.4026083744. The cubic root of 493079905 is about 790.0218468562.

The spelling of 493079905 in words is "four hundred ninety-three million, seventy-nine thousand, nine hundred five".