671335 has 8 divisors (see below), whose sum is σ = 920736. Its totient is φ = 460320.

The previous prime is 671323. The next prime is 671339. The reversal of 671335 is 533176.

It is a happy number.

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

It is not a de Polignac number, because 671335 - 2⁵ = 671303 is a prime.

It is an Ulam number.

It is a Duffinian number.

671335 is a lucky number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671339) 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, 9556 + ... + 9625.

It is an arithmetic number, because the mean of its divisors is an integer number (115092).

2⁶⁷¹³³⁵ is an apocalyptic number.

671335 is a deficient number, since it is larger than the sum of its proper divisors (249401).

671335 is a wasteful number, since it uses less digits than its factorization.

671335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19193.

The product of its digits is 1890, while the sum is 25.

The square root of 671335 is about 819.3503524134. The cubic root of 671335 is about 87.5614806010.

It can be divided in two parts, 6713 and 35, that multiplied together give a triangular number (234955 = T₆₈₅).

The spelling of 671335 in words is "six hundred seventy-one thousand, three hundred thirty-five".