670591149 has 32 divisors (see below), whose sum is σ = 972449280. Its totient is φ = 409655232.

The previous prime is 670591147. The next prime is 670591153. The reversal of 670591149 is 941195076.

It is not a de Polignac number, because 670591149 - 2¹ = 670591147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670591149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670591147) 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 31 ways as a sum of consecutive naturals, for example, 260979 + ... + 263535.

It is an arithmetic number, because the mean of its divisors is an integer number (30389040).

Almost surely, 2^670591149 is an apocalyptic number.

It is an amenable number.

670591149 is a deficient number, since it is larger than the sum of its proper divisors (301858131).

670591149 is a wasteful number, since it uses less digits than its factorization.

670591149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 670591149 is about 25895.7747325698. The cubic root of 670591149 is about 875.2912876182.

The spelling of 670591149 in words is "six hundred seventy million, five hundred ninety-one thousand, one hundred forty-nine".