494643 has 4 divisors (see below), whose sum is σ = 659528. Its totient is φ = 329760.

The previous prime is 494639. The next prime is 494647. The reversal of 494643 is 346494.

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

It is an interprime number because it is at equal distance from previous prime (494639) and next prime (494647).

It is not a de Polignac number, because 494643 - 2² = 494639 is a prime.

It is a D-number.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 494643.

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, 82438 + ... + 82443.

It is an arithmetic number, because the mean of its divisors is an integer number (164882).

2⁴⁹⁴⁶⁴³ is an apocalyptic number.

494643 is a deficient number, since it is larger than the sum of its proper divisors (164885).

494643 is a wasteful number, since it uses less digits than its factorization.

494643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164884.

The product of its digits is 10368, while the sum is 30.

The square root of 494643 is about 703.3086093601. The cubic root of 494643 is about 79.0855772958.

The spelling of 494643 in words is "four hundred ninety-four thousand, six hundred forty-three".