667632713 has 16 divisors (see below), whose sum is σ = 744806400. Its totient is φ = 593358480.

The previous prime is 667632701. The next prime is 667632743. The reversal of 667632713 is 317236766.

It is not a de Polignac number, because 667632713 - 2⁶ = 667632649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667632743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85778 + ... + 93236.

It is an arithmetic number, because the mean of its divisors is an integer number (46550400).

Almost surely, 2^667632713 is an apocalyptic number.

It is an amenable number.

667632713 is a deficient number, since it is larger than the sum of its proper divisors (77173687).

667632713 is a wasteful number, since it uses less digits than its factorization.

667632713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7652.

The product of its digits is 190512, while the sum is 41.

The square root of 667632713 is about 25838.5896093421. The cubic root of 667632713 is about 874.0022206864.

The spelling of 667632713 in words is "six hundred sixty-seven million, six hundred thirty-two thousand, seven hundred thirteen".