494645 has 4 divisors (see below), whose sum is σ = 593580. Its totient is φ = 395712.

The previous prime is 494639. The next prime is 494647. The reversal of 494645 is 546494.

It is a happy number.

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 117649 + 376996 = 343^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 494645 - 2¹⁰ = 493621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494647) 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, 49460 + ... + 49469.

It is an arithmetic number, because the mean of its divisors is an integer number (148395).

2⁴⁹⁴⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

494645 is a deficient number, since it is larger than the sum of its proper divisors (98935).

494645 is an equidigital number, since it uses as much as digits as its factorization.

494645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98934.

The product of its digits is 17280, while the sum is 32.

The square root of 494645 is about 703.3100312096. The cubic root of 494645 is about 79.0856838851.

It can be divided in two parts, 4 and 94645, that added together give a palindrome (94649).

The spelling of 494645 in words is "four hundred ninety-four thousand, six hundred forty-five".