670607699 has 4 divisors (see below), whose sum is σ = 670675920. Its totient is φ = 670539480.

The previous prime is 670607681. The next prime is 670607701. The reversal of 670607699 is 996706076.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 670607699 - 2¹⁶ = 670542163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670607669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16247 + ... + 40064.

It is an arithmetic number, because the mean of its divisors is an integer number (167668980).

Almost surely, 2^670607699 is an apocalyptic number.

670607699 is a deficient number, since it is larger than the sum of its proper divisors (68221).

670607699 is a wasteful number, since it uses less digits than its factorization.

670607699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68220.

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 670607699 is about 25896.0942807984. The cubic root of 670607699 is about 875.2984882061.

The spelling of 670607699 in words is "six hundred seventy million, six hundred seven thousand, six hundred ninety-nine".