968510991 has 8 divisors (see below), whose sum is σ = 1475826304. Its totient is φ = 553434840.

The previous prime is 968510987. The next prime is 968511031. The reversal of 968510991 is 199015869.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 968510991 - 2² = 968510987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 968510991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (968510971) 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 7 ways as a sum of consecutive naturals, for example, 23059765 + ... + 23059806.

It is an arithmetic number, because the mean of its divisors is an integer number (184478288).

Almost surely, 2^968510991 is an apocalyptic number.

968510991 is a deficient number, since it is larger than the sum of its proper divisors (507315313).

968510991 is a wasteful number, since it uses less digits than its factorization.

968510991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46119581.

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 968510991 is about 31120.9092251496. The cubic root of 968510991 is about 989.3915218160.

The spelling of 968510991 in words is "nine hundred sixty-eight million, five hundred ten thousand, nine hundred ninety-one".