671336 has 16 divisors (see below), whose sum is σ = 1299840. Its totient is φ = 324720.

The previous prime is 671323. The next prime is 671339. The reversal of 671336 is 633176.

671336 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (671339) by changing a digit.

671336 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (81240).

2⁶⁷¹³³⁶ is an apocalyptic number.

It is an amenable number.

671336 is a deficient number, since it is larger than the sum of its proper divisors (628504).

671336 is a wasteful number, since it uses less digits than its factorization.

671336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2740 counting only the distinct ones).

The product of its digits is 2268, while the sum is 26.

The square root of 671336 is about 819.3509626528. The cubic root of 671336 is about 87.5615240772.

It can be divided in two parts, 671 and 336, that multiplied together give a triangular number (225456 = T₆₇₁).

The spelling of 671336 in words is "six hundred seventy-one thousand, three hundred thirty-six".