490863687 has 16 divisors (see below), whose sum is σ = 668508768. Its totient is φ = 320261760.

The previous prime is 490863679. The next prime is 490863691. The reversal of 490863687 is 786368094.

It is not a de Polignac number, because 490863687 - 2³ = 490863679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490863647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63273 + ... + 70605.

It is an arithmetic number, because the mean of its divisors is an integer number (41781798).

Almost surely, 2^490863687 is an apocalyptic number.

490863687 is a deficient number, since it is larger than the sum of its proper divisors (177645081).

490863687 is a wasteful number, since it uses less digits than its factorization.

490863687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 490863687 is about 22155.4437328617. The cubic root of 490863687 is about 788.8364471176.

The spelling of 490863687 in words is "four hundred ninety million, eight hundred sixty-three thousand, six hundred eighty-seven".