906871 has 4 divisors (see below), whose sum is σ = 1036432. Its totient is φ = 777312.

The previous prime is 906869. The next prime is 906881. The reversal of 906871 is 178609.

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

It is a cyclic number.

It is not a de Polignac number, because 906871 - 2¹ = 906869 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 (906881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64770 + ... + 64783.

It is an arithmetic number, because the mean of its divisors is an integer number (259108).

2⁹⁰⁶⁸⁷¹ is an apocalyptic number.

906871 is a deficient number, since it is larger than the sum of its proper divisors (129561).

906871 is a wasteful number, since it uses less digits than its factorization.

906871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129560.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 906871 is about 952.2977475559. The cubic root of 906871 is about 96.7940150092.

The spelling of 906871 in words is "nine hundred six thousand, eight hundred seventy-one".