671901 has 8 divisors (see below), whose sum is σ = 926880. Its totient is φ = 432432.

The previous prime is 671893. The next prime is 671903. The reversal of 671901 is 109176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 671901 - 2³ = 671893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3775 + ... + 3948.

It is an arithmetic number, because the mean of its divisors is an integer number (115860).

2⁶⁷¹⁹⁰¹ is an apocalyptic number.

It is an amenable number.

671901 is a deficient number, since it is larger than the sum of its proper divisors (254979).

671901 is a wasteful number, since it uses less digits than its factorization.

671901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7755.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 671901 is about 819.6956752356. The cubic root of 671901 is about 87.5860812731.

The spelling of 671901 in words is "six hundred seventy-one thousand, nine hundred one".