487431 has 16 divisors (see below), whose sum is σ = 825600. Its totient is φ = 278424.

The previous prime is 487429. The next prime is 487447. The reversal of 487431 is 134784.

It is not a de Polignac number, because 487431 - 2¹ = 487429 is a prime.

It is a super-2 number, since 2×487431² = 475177959522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 487395 and 487404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1101 + ... + 1478.

It is an arithmetic number, because the mean of its divisors is an integer number (51600).

2⁴⁸⁷⁴³¹ is an apocalyptic number.

487431 is a deficient number, since it is larger than the sum of its proper divisors (338169).

487431 is a wasteful number, since it uses less digits than its factorization.

487431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595 (or 2589 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 487431 is about 698.1625885136. The cubic root of 487431 is about 78.6993324870.

The spelling of 487431 in words is "four hundred eighty-seven thousand, four hundred thirty-one".