670478759 has 4 divisors (see below), whose sum is σ = 709918704. Its totient is φ = 631038816.

The previous prime is 670478749. The next prime is 670478761. The reversal of 670478759 is 957874076.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 670478759 - 2²⁸ = 402043303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670478759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670478749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19719947 + ... + 19719980.

It is an arithmetic number, because the mean of its divisors is an integer number (177479676).

Almost surely, 2^670478759 is an apocalyptic number.

670478759 is a deficient number, since it is larger than the sum of its proper divisors (39439945).

670478759 is a wasteful number, since it uses less digits than its factorization.

670478759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39439944.

The product of its (nonzero) digits is 2963520, while the sum is 53.

The square root of 670478759 is about 25893.6045965022. The cubic root of 670478759 is about 875.2423857479.

The spelling of 670478759 in words is "six hundred seventy million, four hundred seventy-eight thousand, seven hundred fifty-nine".