670249579 has 8 divisors (see below), whose sum is σ = 677033280. Its totient is φ = 663491400.

The previous prime is 670249577. The next prime is 670249583. The reversal of 670249579 is 975942076.

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

It is a cyclic number.

It is not a de Polignac number, because 670249579 - 2¹ = 670249577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670249571) 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, 48784 + ... + 60994.

It is an arithmetic number, because the mean of its divisors is an integer number (84629160).

Almost surely, 2^670249579 is an apocalyptic number.

670249579 is a deficient number, since it is larger than the sum of its proper divisors (6783701).

670249579 is a wasteful number, since it uses less digits than its factorization.

670249579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12761.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 670249579 is about 25889.1788011903. The cubic root of 670249579 is about 875.1426505929.

The spelling of 670249579 in words is "six hundred seventy million, two hundred forty-nine thousand, five hundred seventy-nine".