671896 has 8 divisors (see below), whose sum is σ = 1259820. Its totient is φ = 335944.

The previous prime is 671893. The next prime is 671903. The reversal of 671896 is 698176.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41986 + ... + 42001.

2⁶⁷¹⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

671896 is a deficient number, since it is larger than the sum of its proper divisors (587924).

671896 is a wasteful number, since it uses less digits than its factorization.

671896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83993 (or 83989 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 671896 is about 819.6926253176. The cubic root of 671896 is about 87.5858640131.

The spelling of 671896 in words is "six hundred seventy-one thousand, eight hundred ninety-six".