490448687 has 4 divisors (see below), whose sum is σ = 490652376. Its totient is φ = 490245000.

The previous prime is 490448681. The next prime is 490448719. The reversal of 490448687 is 786844094.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786844094 = 2 ⋅393422047.

It is a cyclic number.

It is not a de Polignac number, because 490448687 - 2¹⁰ = 490447663 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 (490448681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98189 + ... + 103062.

It is an arithmetic number, because the mean of its divisors is an integer number (122663094).

Almost surely, 2^490448687 is an apocalyptic number.

490448687 is a deficient number, since it is larger than the sum of its proper divisors (203689).

490448687 is a wasteful number, since it uses less digits than its factorization.

490448687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203688.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The square root of 490448687 is about 22146.0761084216. The cubic root of 490448687 is about 788.6140775576.

The spelling of 490448687 in words is "four hundred ninety million, four hundred forty-eight thousand, six hundred eighty-seven".