670879 has 8 divisors (see below), whose sum is σ = 743040. Its totient is φ = 600600.

The previous prime is 670877. The next prime is 670897. The reversal of 670879 is 978076.

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

It is not a de Polignac number, because 670879 - 2¹ = 670877 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670877) 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, 352 + ... + 1210.

It is an arithmetic number, because the mean of its divisors is an integer number (92880).

2⁶⁷⁰⁸⁷⁹ is an apocalyptic number.

670879 is a deficient number, since it is larger than the sum of its proper divisors (72161).

670879 is a wasteful number, since it uses less digits than its factorization.

670879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 670879 is about 819.0720359040. The cubic root of 670879 is about 87.5416509189.

The spelling of 670879 in words is "six hundred seventy thousand, eight hundred seventy-nine".