487919 has 4 divisors (see below), whose sum is σ = 501144. Its totient is φ = 474696.

The previous prime is 487897. The next prime is 487933. The reversal of 487919 is 919784.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487919 is a prime.

It is a super-2 number, since 2×487919² = 476129901122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487979) 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, 6557 + ... + 6630.

It is an arithmetic number, because the mean of its divisors is an integer number (125286).

2⁴⁸⁷⁹¹⁹ is an apocalyptic number.

487919 is a deficient number, since it is larger than the sum of its proper divisors (13225).

487919 is a wasteful number, since it uses less digits than its factorization.

487919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13224.

The product of its digits is 18144, while the sum is 38.

The square root of 487919 is about 698.5119898756. The cubic root of 487919 is about 78.7255874610.

The spelling of 487919 in words is "four hundred eighty-seven thousand, nine hundred nineteen".