706472251 has 4 divisors (see below), whose sum is σ = 709640512. Its totient is φ = 703303992.

The previous prime is 706472227. The next prime is 706472317. The reversal of 706472251 is 152274607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152274607 = 19 ⋅8014453.

It is a cyclic number.

It is not a de Polignac number, because 706472251 - 2⁹ = 706471739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706472551) 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, 1583796 + ... + 1584241.

It is an arithmetic number, because the mean of its divisors is an integer number (177410128).

Almost surely, 2^706472251 is an apocalyptic number.

706472251 is a deficient number, since it is larger than the sum of its proper divisors (3168261).

706472251 is a wasteful number, since it uses less digits than its factorization.

706472251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168260.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 706472251 is about 26579.5457259901. The cubic root of 706472251 is about 890.6321524096.

The spelling of 706472251 in words is "seven hundred six million, four hundred seventy-two thousand, two hundred fifty-one".