706271721 has 8 divisors (see below), whose sum is σ = 950838720. Its totient is φ = 466276272.

The previous prime is 706271711. The next prime is 706271747. The reversal of 706271721 is 127172607.

It is a happy number.

706271721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 706271721 - 2¹¹ = 706269673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (706271701) 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, 1142526 + ... + 1143143.

It is an arithmetic number, because the mean of its divisors is an integer number (118854840).

Almost surely, 2^706271721 is an apocalyptic number.

It is an amenable number.

706271721 is a deficient number, since it is larger than the sum of its proper divisors (244566999).

706271721 is a wasteful number, since it uses less digits than its factorization.

706271721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285775.

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 706271721 is about 26575.7731966541. The cubic root of 706271721 is about 890.5478766926.

The spelling of 706271721 in words is "seven hundred six million, two hundred seventy-one thousand, seven hundred twenty-one".