670348 has 24 divisors (see below), whose sum is σ = 1360800. Its totient is φ = 283008.

The previous prime is 670343. The next prime is 670349. The reversal of 670348 is 843076.

It is a super-2 number, since 2×670348² = 898732882208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (670343) by changing a digit.

670348 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 7 ways as a sum of consecutive naturals, for example, 2358 + ... + 2626.

It is an arithmetic number, because the mean of its divisors is an integer number (56700).

2⁶⁷⁰³⁴⁸ is an apocalyptic number.

It is an amenable number.

670348 is an abundant number, since it is smaller than the sum of its proper divisors (690452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

670348 is a wasteful number, since it uses less digits than its factorization.

670348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 670348 is about 818.7478244246. The cubic root of 670348 is about 87.5185484487.

The spelling of 670348 in words is "six hundred seventy thousand, three hundred forty-eight".