487942 has 24 divisors (see below), whose sum is σ = 919296. Its totient is φ = 192528.

The previous prime is 487933. The next prime is 487943. The reversal of 487942 is 249784.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 487898 and 487907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1083 + ... + 1465.

It is an arithmetic number, because the mean of its divisors is an integer number (38304).

2⁴⁸⁷⁹⁴² is an apocalyptic number.

487942 is a deficient number, since it is larger than the sum of its proper divisors (431354).

487942 is a wasteful number, since it uses less digits than its factorization.

487942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 405 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 487942 is about 698.5284532501. The cubic root of 487942 is about 78.7268244560.

The spelling of 487942 in words is "four hundred eighty-seven thousand, nine hundred forty-two".