887405 has 4 divisors (see below), whose sum is σ = 1064892. Its totient is φ = 709920.

The previous prime is 887401. The next prime is 887423. The reversal of 887405 is 504788.

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

It can be written as a sum of positive squares in 2 ways, for example, as 481636 + 405769 = 694^2 + 637^2 .

It is not a de Polignac number, because 887405 - 2² = 887401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887401) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 88736 + ... + 88745.

It is an arithmetic number, because the mean of its divisors is an integer number (266223).

2⁸⁸⁷⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

887405 is a deficient number, since it is larger than the sum of its proper divisors (177487).

887405 is a wasteful number, since it uses less digits than its factorization.

887405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177486.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 887405 is about 942.0217619567. The cubic root of 887405 is about 96.0964381009.

The spelling of 887405 in words is "eight hundred eighty-seven thousand, four hundred five".