842487 has 8 divisors (see below), whose sum is σ = 1159680. Its totient is φ = 543480.

The previous prime is 842483. The next prime is 842489. The reversal of 842487 is 784248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 842487 - 2² = 842483 is a prime.

It is a d-powerful number, because it can be written as 8³ + 4⁵ + 4⁷ + 2⁹ + 8³ + 7⁷ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 842487.

It is not an unprimeable number, because it can be changed into a prime (842483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4437 + ... + 4622.

It is an arithmetic number, because the mean of its divisors is an integer number (144960).

2⁸⁴²⁴⁸⁷ is an apocalyptic number.

842487 is a deficient number, since it is larger than the sum of its proper divisors (317193).

842487 is a wasteful number, since it uses less digits than its factorization.

842487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9093.

The product of its digits is 14336, while the sum is 33.

The square root of 842487 is about 917.8709059557. The cubic root of 842487 is about 94.4469061514.

It can be divided in two parts, 84248 and 7, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 842487 in words is "eight hundred forty-two thousand, four hundred eighty-seven".