706665057 has 32 divisors (see below), whose sum is σ = 1114742784. Its totient is φ = 389664000.

The previous prime is 706665031. The next prime is 706665067. The reversal of 706665057 is 750566607.

706665057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 706665057 - 2⁸ = 706664801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (706665017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259698 + ... + 262404.

It is an arithmetic number, because the mean of its divisors is an integer number (34835712).

Almost surely, 2^706665057 is an apocalyptic number.

It is an amenable number.

706665057 is a deficient number, since it is larger than the sum of its proper divisors (408077727).

706665057 is a wasteful number, since it uses less digits than its factorization.

706665057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149.

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 706665057 is about 26583.1724404744. The cubic root of 706665057 is about 890.7131669639.

The spelling of 706665057 in words is "seven hundred six million, six hundred sixty-five thousand, fifty-seven".