670322407 has 4 divisors (see below), whose sum is σ = 686671776. Its totient is φ = 653973040.

The previous prime is 670322381. The next prime is 670322417. The reversal of 670322407 is 704223076.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670322407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670322417) 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, 8174623 + ... + 8174704.

It is an arithmetic number, because the mean of its divisors is an integer number (171667944).

Almost surely, 2^670322407 is an apocalyptic number.

670322407 is a deficient number, since it is larger than the sum of its proper divisors (16349369).

670322407 is a wasteful number, since it uses less digits than its factorization.

670322407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16349368.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 670322407 is about 25890.5852965900. The cubic root of 670322407 is about 875.1743465375.

The spelling of 670322407 in words is "six hundred seventy million, three hundred twenty-two thousand, four hundred seven".