706631887 has 16 divisors (see below), whose sum is σ = 802271232. Its totient is φ = 617787360.

The previous prime is 706631839. The next prime is 706631899. The reversal of 706631887 is 788136607.

It is a cyclic number.

It is not a de Polignac number, because 706631887 - 2⁷ = 706631759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706631837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288 + ... + 37594.

It is an arithmetic number, because the mean of its divisors is an integer number (50141952).

Almost surely, 2^706631887 is an apocalyptic number.

706631887 is a deficient number, since it is larger than the sum of its proper divisors (95639345).

706631887 is a wasteful number, since it uses less digits than its factorization.

706631887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37398.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 706631887 is about 26582.5485422297. The cubic root of 706631887 is about 890.6992304142.

The spelling of 706631887 in words is "seven hundred six million, six hundred thirty-one thousand, eight hundred eighty-seven".