706297897 has 4 divisors (see below), whose sum is σ = 711689616. Its totient is φ = 700906180.

The previous prime is 706297877. The next prime is 706297901. The reversal of 706297897 is 798792607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798792607 = 157 ⋅5087851.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-706297897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (706297817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695663 + ... + 2695924.

It is an arithmetic number, because the mean of its divisors is an integer number (177922404).

Almost surely, 2^706297897 is an apocalyptic number.

It is an amenable number.

706297897 is a deficient number, since it is larger than the sum of its proper divisors (5391719).

706297897 is a wasteful number, since it uses less digits than its factorization.

706297897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5391718.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The square root of 706297897 is about 26576.2656707070. The cubic root of 706297897 is about 890.5588784514.

The spelling of 706297897 in words is "seven hundred six million, two hundred ninety-seven thousand, eight hundred ninety-seven".