706652721 has 8 divisors (see below), whose sum is σ = 1046892960. Its totient is φ = 471101796.

The previous prime is 706652711. The next prime is 706652741. The reversal of 706652721 is 127256607.

706652721 is a `hidden beast` number, since 70 + 66 + 527 + 2 + 1 = 666.

It is not a de Polignac number, because 706652721 - 2¹⁸ = 706390577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (706652711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13086135 + ... + 13086188.

It is an arithmetic number, because the mean of its divisors is an integer number (130861620).

Almost surely, 2^706652721 is an apocalyptic number.

It is an amenable number.

706652721 is a deficient number, since it is larger than the sum of its proper divisors (340240239).

706652721 is a wasteful number, since it uses less digits than its factorization.

706652721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26172332 (or 26172326 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 706652721 is about 26582.9404129791. The cubic root of 706652721 is about 890.7079839796.

The spelling of 706652721 in words is "seven hundred six million, six hundred fifty-two thousand, seven hundred twenty-one".