671366 has 8 divisors (see below), whose sum is σ = 1023744. Its totient is φ = 330120.

The previous prime is 671357. The next prime is 671369. The reversal of 671366 is 663176.

It is a happy number.

671366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2630 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (127968).

2⁶⁷¹³⁶⁶ is an apocalyptic number.

671366 is a deficient number, since it is larger than the sum of its proper divisors (352378).

671366 is a wasteful number, since it uses less digits than its factorization.

671366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566.

The product of its digits is 4536, while the sum is 29.

The square root of 671366 is about 819.3692696215. The cubic root of 671366 is about 87.5628283454.

The spelling of 671366 in words is "six hundred seventy-one thousand, three hundred sixty-six".