480505987 has 4 divisors (see below), whose sum is σ = 517468000. Its totient is φ = 443543976.

The previous prime is 480505981. The next prime is 480505999. The reversal of 480505987 is 789505084.

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 480505987 - 2³ = 480505979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (480505981) 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, 18480987 + ... + 18481012.

It is an arithmetic number, because the mean of its divisors is an integer number (129367000).

Almost surely, 2^480505987 is an apocalyptic number.

480505987 is a deficient number, since it is larger than the sum of its proper divisors (36962013).

480505987 is a wasteful number, since it uses less digits than its factorization.

480505987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36962012.

The product of its (nonzero) digits is 403200, while the sum is 46.

The square root of 480505987 is about 21920.4467792059. The cubic root of 480505987 is about 783.2485527479.

The spelling of 480505987 in words is "four hundred eighty million, five hundred five thousand, nine hundred eighty-seven".