670718067 has 8 divisors (see below), whose sum is σ = 894519696. Its totient is φ = 447030912.

The previous prime is 670718063. The next prime is 670718099. The reversal of 670718067 is 760817076.

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

It is not a de Polignac number, because 670718067 - 2² = 670718063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670718063) 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, 13858 + ... + 39159.

It is an arithmetic number, because the mean of its divisors is an integer number (111814962).

Almost surely, 2^670718067 is an apocalyptic number.

670718067 is a deficient number, since it is larger than the sum of its proper divisors (223801629).

670718067 is a wasteful number, since it uses less digits than its factorization.

670718067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57237.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 670718067 is about 25898.2251708491. The cubic root of 670718067 is about 875.3465041795.

Subtracting 670718067 from its reverse (760817076), we obtain a palindrome (90099009).

The spelling of 670718067 in words is "six hundred seventy million, seven hundred eighteen thousand, sixty-seven".