670707381 has 8 divisors (see below), whose sum is σ = 894412224. Its totient is φ = 447070400.

The previous prime is 670707377. The next prime is 670707419. The reversal of 670707381 is 183707076.

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 670707381 - 2² = 670707377 is a prime.

It is a super-2 number, since 2×670707381² = 899696781855758322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670707311) 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 7 ways as a sum of consecutive naturals, for example, 14365 + ... + 39341.

It is an arithmetic number, because the mean of its divisors is an integer number (111801528).

Almost surely, 2^670707381 is an apocalyptic number.

It is an amenable number.

670707381 is a deficient number, since it is larger than the sum of its proper divisors (223704843).

670707381 is a wasteful number, since it uses less digits than its factorization.

670707381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33931.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 670707381 is about 25898.0188624536. The cubic root of 670707381 is about 875.3418554293.

The spelling of 670707381 in words is "six hundred seventy million, seven hundred seven thousand, three hundred eighty-one".