706957897 has 2 divisors, whose sum is σ = 706957898. Its totient is φ = 706957896.

The previous prime is 706957891. The next prime is 706957919. The reversal of 706957897 is 798759607.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 612265536 + 94692361 = 24744^2 + 9731^2 .

It is a cyclic number.

It is not a de Polignac number, because 706957897 - 2¹¹ = 706955849 is a prime.

It is a super-3 number, since 3×706957897³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (706957891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353478948 + 353478949.

It is an arithmetic number, because the mean of its divisors is an integer number (353478949).

Almost surely, 2^706957897 is an apocalyptic number.

It is an amenable number.

706957897 is a deficient number, since it is larger than the sum of its proper divisors (1).

706957897 is an equidigital number, since it uses as much as digits as its factorization.

706957897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6667920, while the sum is 58.

The square root of 706957897 is about 26588.6798656872. The cubic root of 706957897 is about 890.8361863111.

The spelling of 706957897 in words is "seven hundred six million, nine hundred fifty-seven thousand, eight hundred ninety-seven".