494805617 has 4 divisors (see below), whose sum is σ = 496366836. Its totient is φ = 493244400.

The previous prime is 494805599. The next prime is 494805637. The reversal of 494805617 is 716508494.

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 294328336 + 200477281 = 17156^2 + 14159^2 .

It is a cyclic number.

It is not a de Polignac number, because 494805617 - 2¹² = 494801521 is a prime.

It is a super-2 number, since 2×494805617² = 489665197229501378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494805637) 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, 780134 + ... + 780767.

It is an arithmetic number, because the mean of its divisors is an integer number (124091709).

Almost surely, 2^494805617 is an apocalyptic number.

It is an amenable number.

494805617 is a deficient number, since it is larger than the sum of its proper divisors (1561219).

494805617 is a wasteful number, since it uses less digits than its factorization.

494805617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561218.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 494805617 is about 22244.2265992774. The cubic root of 494805617 is about 790.9424297340.

The spelling of 494805617 in words is "four hundred ninety-four million, eight hundred five thousand, six hundred seventeen".