670993 has 4 divisors (see below), whose sum is σ = 673648. Its totient is φ = 668340.

The previous prime is 670991. The next prime is 671003. The reversal of 670993 is 399076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 670993 - 2¹ = 670991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670991) 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, 903 + ... + 1468.

It is an arithmetic number, because the mean of its divisors is an integer number (168412).

2⁶⁷⁰⁹⁹³ is an apocalyptic number.

It is an amenable number.

670993 is a deficient number, since it is larger than the sum of its proper divisors (2655).

670993 is a wasteful number, since it uses less digits than its factorization.

670993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 670993 is about 819.1416238966. The cubic root of 670993 is about 87.5466091816.

The spelling of 670993 in words is "six hundred seventy thousand, nine hundred ninety-three".