670281 has 8 divisors (see below), whose sum is σ = 897600. Its totient is φ = 444912.

The previous prime is 670279. The next prime is 670297. The reversal of 670281 is 182076.

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

It is not a de Polignac number, because 670281 - 2¹ = 670279 is a prime.

It is a super-2 number, since 2×670281² = 898553237922, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670281.

It is not an unprimeable number, because it can be changed into a prime (670211) 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, 820 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (112200).

2⁶⁷⁰²⁸¹ is an apocalyptic number.

It is an amenable number.

670281 is a deficient number, since it is larger than the sum of its proper divisors (227319).

670281 is a wasteful number, since it uses less digits than its factorization.

670281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 670281 is about 818.7069072629. The cubic root of 670281 is about 87.5156325811.

The spelling of 670281 in words is "six hundred seventy thousand, two hundred eighty-one".