900871 has 4 divisors (see below), whose sum is σ = 916200. Its totient is φ = 885544.

The previous prime is 900869. The next prime is 900917. The reversal of 900871 is 178009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178009 = 13 ⋅13693.

It is a cyclic number.

It is not a de Polignac number, because 900871 - 2¹ = 900869 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 (900821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7576 + ... + 7693.

It is an arithmetic number, because the mean of its divisors is an integer number (229050).

2⁹⁰⁰⁸⁷¹ is an apocalyptic number.

900871 is a deficient number, since it is larger than the sum of its proper divisors (15329).

900871 is a wasteful number, since it uses less digits than its factorization.

900871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15328.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 900871 is about 949.1422443449. The cubic root of 900871 is about 96.5800743909.

It can be divided in two parts, 900 and 871, that added together give a palindrome (1771).

The spelling of 900871 in words is "nine hundred thousand, eight hundred seventy-one".