706565997 has 24 divisors (see below), whose sum is σ = 1084224960. Its totient is φ = 459548640.

The previous prime is 706565971. The next prime is 706565999. The reversal of 706565997 is 799565607.

706565997 is a `hidden beast` number, since 70 + 6 + 565 + 9 + 9 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-706565997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706565999) 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 23 ways as a sum of consecutive naturals, for example, 25497 + ... + 45422.

It is an arithmetic number, because the mean of its divisors is an integer number (45176040).

Almost surely, 2^706565997 is an apocalyptic number.

It is an amenable number.

706565997 is a deficient number, since it is larger than the sum of its proper divisors (377658963).

706565997 is an equidigital number, since it uses as much as digits as its factorization.

706565997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70975 (or 70963 counting only the distinct ones).

The product of its (nonzero) digits is 3572100, while the sum is 54.

The square root of 706565997 is about 26581.3091664049. The cubic root of 706565997 is about 890.6715450910.

The spelling of 706565997 in words is "seven hundred six million, five hundred sixty-five thousand, nine hundred ninety-seven".