495890 has 16 divisors (see below), whose sum is σ = 945432. Its totient is φ = 186624.

The previous prime is 495877. The next prime is 495893. The reversal of 495890 is 98594.

It can be written as a sum of positive squares in 4 ways, for example, as 494209 + 1681 = 703^2 + 41^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 495890.

It is not an unprimeable number, because it can be changed into a prime (495893) by changing a digit.

495890 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1289 + ... + 1628.

2⁴⁹⁵⁸⁹⁰ is an apocalyptic number.

495890 is a deficient number, since it is larger than the sum of its proper divisors (449542).

495890 is a wasteful number, since it uses less digits than its factorization.

495890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 495890 is about 704.1945753838. The cubic root of 495890 is about 79.1519800395.

The spelling of 495890 in words is "four hundred ninety-five thousand, eight hundred ninety".