490765 has 8 divisors (see below), whose sum is σ = 642528. Its totient is φ = 356880.

The previous prime is 490741. The next prime is 490769. The reversal of 490765 is 567094.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 490765 - 2⁵ = 490733 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4407 + ... + 4516.

It is an arithmetic number, because the mean of its divisors is an integer number (80316).

2⁴⁹⁰⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

490765 is a deficient number, since it is larger than the sum of its proper divisors (151763).

490765 is a wasteful number, since it uses less digits than its factorization.

490765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8939.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 490765 is about 700.5462154633. The cubic root of 490765 is about 78.8783578998.

The spelling of 490765 in words is "four hundred ninety thousand, seven hundred sixty-five".