670844493 has 12 divisors (see below), whose sum is σ = 1057088448. Its totient is φ = 406572360.

The previous prime is 670844491. The next prime is 670844527. The reversal of 670844493 is 394448076.

It is not a de Polignac number, because 670844493 - 2¹ = 670844491 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670844491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3388005 + ... + 3388202.

It is an arithmetic number, because the mean of its divisors is an integer number (88090704).

Almost surely, 2^670844493 is an apocalyptic number.

It is an amenable number.

670844493 is a deficient number, since it is larger than the sum of its proper divisors (386243955).

670844493 is a wasteful number, since it uses less digits than its factorization.

670844493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776224 (or 6776221 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 670844493 is about 25900.6658794711. The cubic root of 670844493 is about 875.4014997681.

The spelling of 670844493 in words is "six hundred seventy million, eight hundred forty-four thousand, four hundred ninety-three".