490757 has 4 divisors (see below), whose sum is σ = 492300. Its totient is φ = 489216.

The previous prime is 490741. The next prime is 490769. The reversal of 490757 is 757094.

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 417316 + 73441 = 646^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 490757 - 2⁴ = 490741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98 + ... + 995.

It is an arithmetic number, because the mean of its divisors is an integer number (123075).

2⁴⁹⁰⁷⁵⁷ is an apocalyptic number.

It is an amenable number.

490757 is a deficient number, since it is larger than the sum of its proper divisors (1543).

490757 is a wasteful number, since it uses less digits than its factorization.

490757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 490757 is about 700.5405056098. The cubic root of 490757 is about 78.8779292967.

The spelling of 490757 in words is "four hundred ninety thousand, seven hundred fifty-seven".