871654 has 16 divisors (see below), whose sum is σ = 1559808. Its totient is φ = 357192.

The previous prime is 871649. The next prime is 871657. The reversal of 871654 is 456178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871657) 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 7 ways as a sum of consecutive naturals, for example, 1032 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (97488).

2⁸⁷¹⁶⁵⁴ is an apocalyptic number.

871654 is a deficient number, since it is larger than the sum of its proper divisors (688154).

871654 is a wasteful number, since it uses less digits than its factorization.

871654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2739.

The product of its digits is 6720, while the sum is 31.

The square root of 871654 is about 933.6241213679. The cubic root of 871654 is about 95.5244859228.

The spelling of 871654 in words is "eight hundred seventy-one thousand, six hundred fifty-four".