489602987 has 4 divisors (see below), whose sum is σ = 489798360. Its totient is φ = 489407616.

The previous prime is 489602959. The next prime is 489602989. The reversal of 489602987 is 789206984.

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 489602987 - 2¹⁰ = 489601963 is a prime.

It is a super-2 number, since 2×489602987² = 479422169758644338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489602989) 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, 93878 + ... + 98955.

It is an arithmetic number, because the mean of its divisors is an integer number (122449590).

Almost surely, 2^489602987 is an apocalyptic number.

489602987 is a deficient number, since it is larger than the sum of its proper divisors (195373).

489602987 is a wasteful number, since it uses less digits than its factorization.

489602987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195372.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The square root of 489602987 is about 22126.9741944081. The cubic root of 489602987 is about 788.1605373272.

The spelling of 489602987 in words is "four hundred eighty-nine million, six hundred two thousand, nine hundred eighty-seven".