671959 has 12 divisors (see below), whose sum is σ = 752544. Its totient is φ = 597632.

The previous prime is 671947. The next prime is 671969. The reversal of 671959 is 959176.

671959 = 7³ + 8³ + ... + 40³.

It is not a de Polignac number, because 671959 - 2⁷ = 671831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14274 + ... + 14320.

It is an arithmetic number, because the mean of its divisors is an integer number (62712).

2⁶⁷¹⁹⁵⁹ is an apocalyptic number.

671959 is a deficient number, since it is larger than the sum of its proper divisors (80585).

671959 is a wasteful number, since it uses less digits than its factorization.

671959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 93 counting only the distinct ones).

The product of its digits is 17010, while the sum is 37.

The square root of 671959 is about 819.7310534559. The cubic root of 671959 is about 87.5886014095.

The spelling of 671959 in words is "six hundred seventy-one thousand, nine hundred fifty-nine".