712006667 has 4 divisors (see below), whose sum is σ = 734974656. Its totient is φ = 689038680.

The previous prime is 712006661. The next prime is 712006679. The reversal of 712006667 is 766600217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766600217 = 4091 ⋅187387.

It is a cyclic number.

It is not a de Polignac number, because 712006667 - 2¹⁴ = 711990283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712006661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11483948 + ... + 11484009.

It is an arithmetic number, because the mean of its divisors is an integer number (183743664).

Almost surely, 2^712006667 is an apocalyptic number.

712006667 is a deficient number, since it is larger than the sum of its proper divisors (22967989).

712006667 is a wasteful number, since it uses less digits than its factorization.

712006667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22967988.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 712006667 is about 26683.4530561545. The cubic root of 712006667 is about 892.9518062295.

The spelling of 712006667 in words is "seven hundred twelve million, six thousand, six hundred sixty-seven".