968689897 has 4 divisors (see below), whose sum is σ = 1107074176. Its totient is φ = 830305620.

The previous prime is 968689877. The next prime is 968689913. The reversal of 968689897 is 798986869.

It is a happy number.

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: 798986869 = 107 ⋅7467167.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-968689897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (968689807) 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, 69192129 + ... + 69192142.

It is an arithmetic number, because the mean of its divisors is an integer number (276768544).

Almost surely, 2^968689897 is an apocalyptic number.

It is an amenable number.

968689897 is a deficient number, since it is larger than the sum of its proper divisors (138384279).

968689897 is a wasteful number, since it uses less digits than its factorization.

968689897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138384278.

The product of its digits is 94058496, while the sum is 70.

The square root of 968689897 is about 31123.7834621692. The cubic root of 968689897 is about 989.4524391015.

The spelling of 968689897 in words is "nine hundred sixty-eight million, six hundred eighty-nine thousand, eight hundred ninety-seven".