490887587 has 4 divisors (see below), whose sum is σ = 493431240. Its totient is φ = 488343936.

The previous prime is 490887583. The next prime is 490887589. The reversal of 490887587 is 785788094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 490887587 - 2² = 490887583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490887583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271537 + ... + 1271922.

It is an arithmetic number, because the mean of its divisors is an integer number (123357810).

Almost surely, 2^490887587 is an apocalyptic number.

490887587 is a deficient number, since it is larger than the sum of its proper divisors (2543653).

490887587 is a wasteful number, since it uses less digits than its factorization.

490887587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543652.

The product of its (nonzero) digits is 4515840, while the sum is 56.

The square root of 490887587 is about 22155.9830971230. The cubic root of 490887587 is about 788.8492496434.

The spelling of 490887587 in words is "four hundred ninety million, eight hundred eighty-seven thousand, five hundred eighty-seven".