670407667 has 8 divisors (see below), whose sum is σ = 681753600. Its totient is φ = 659133384.

The previous prime is 670407649. The next prime is 670407677. The reversal of 670407667 is 766704076.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670407667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670407677) 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, 1128 + ... + 36634.

It is an arithmetic number, because the mean of its divisors is an integer number (85219200).

Almost surely, 2^670407667 is an apocalyptic number.

670407667 is a deficient number, since it is larger than the sum of its proper divisors (11345933).

670407667 is a wasteful number, since it uses less digits than its factorization.

670407667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35825.

The product of its (nonzero) digits is 296352, while the sum is 43.

The square root of 670407667 is about 25892.2317887045. The cubic root of 670407667 is about 875.2114501763.

The spelling of 670407667 in words is "six hundred seventy million, four hundred seven thousand, six hundred sixty-seven".