670958 has 8 divisors (see below), whose sum is σ = 1033752. Its totient is φ = 326376.

The previous prime is 670951. The next prime is 670963. The reversal of 670958 is 859076.

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 (670951) 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, 4460 + ... + 4607.

It is an arithmetic number, because the mean of its divisors is an integer number (129219).

2⁶⁷⁰⁹⁵⁸ is an apocalyptic number.

670958 is a deficient number, since it is larger than the sum of its proper divisors (362794).

670958 is a wasteful number, since it uses less digits than its factorization.

670958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9106.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 670958 is about 819.1202597910. The cubic root of 670958 is about 87.5450869677.

The spelling of 670958 in words is "six hundred seventy thousand, nine hundred fifty-eight".