487906 has 4 divisors (see below), whose sum is σ = 731862. Its totient is φ = 243952.

The previous prime is 487897. The next prime is 487933. The reversal of 487906 is 609784.

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

It can be written as a sum of positive squares in only one way, i.e., 403225 + 84681 = 635^2 + 291^2 .

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121975 + ... + 121978.

2⁴⁸⁷⁹⁰⁶ is an apocalyptic number.

487906 is a deficient number, since it is larger than the sum of its proper divisors (243956).

487906 is a wasteful number, since it uses less digits than its factorization.

487906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243955.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 487906 is about 698.5026843184. The cubic root of 487906 is about 78.7248882727.

The spelling of 487906 in words is "four hundred eighty-seven thousand, nine hundred six".