968647679 has 4 divisors (see below), whose sum is σ = 994827384. Its totient is φ = 942467976.

The previous prime is 968647657. The next prime is 968647699. The reversal of 968647679 is 976746869.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 976746869 = 7 ⋅139535267.

It is a cyclic number.

It is not a de Polignac number, because 968647679 - 2⁸ = 968647423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (968647619) 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, 13089797 + ... + 13089870.

It is an arithmetic number, because the mean of its divisors is an integer number (248706846).

Almost surely, 2^968647679 is an apocalyptic number.

968647679 is a deficient number, since it is larger than the sum of its proper divisors (26179705).

968647679 is a wasteful number, since it uses less digits than its factorization.

968647679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26179704.

The product of its digits is 27433728, while the sum is 62.

The square root of 968647679 is about 31123.1052274673. The cubic root of 968647679 is about 989.4380645976.

The spelling of 968647679 in words is "nine hundred sixty-eight million, six hundred forty-seven thousand, six hundred seventy-nine".