706845631 has 2 divisors, whose sum is σ = 706845632. Its totient is φ = 706845630.

The previous prime is 706845611. The next prime is 706845701. The reversal of 706845631 is 136548607.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 706845631 - 2⁵ = 706845599 is a prime.

It is a super-2 number, since 2×706845631² = 999261492127576322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (706845611) 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 as a sum of consecutive naturals, namely, 353422815 + 353422816.

It is an arithmetic number, because the mean of its divisors is an integer number (353422816).

Almost surely, 2^706845631 is an apocalyptic number.

706845631 is a deficient number, since it is larger than the sum of its proper divisors (1).

706845631 is an equidigital number, since it uses as much as digits as its factorization.

706845631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 706845631 is about 26586.5686202639. The cubic root of 706845631 is about 890.7890284299.

The spelling of 706845631 in words is "seven hundred six million, eight hundred forty-five thousand, six hundred thirty-one".