494569 has 4 divisors (see below), whose sum is σ = 516096. Its totient is φ = 473044.

The previous prime is 494567. The next prime is 494587. The reversal of 494569 is 965494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 494569 - 2¹ = 494567 is a prime.

It is a super-2 number, since 2×494569² = 489196991522, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494561) 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, 10729 + ... + 10774.

It is an arithmetic number, because the mean of its divisors is an integer number (129024).

2⁴⁹⁴⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

494569 is a deficient number, since it is larger than the sum of its proper divisors (21527).

494569 is a wasteful number, since it uses less digits than its factorization.

494569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21526.

The product of its digits is 38880, while the sum is 37.

The square root of 494569 is about 703.2559989079. The cubic root of 494569 is about 79.0816332900.

The spelling of 494569 in words is "four hundred ninety-four thousand, five hundred sixty-nine".