968976661 has 4 divisors (see below), whose sum is σ = 969040800. Its totient is φ = 968912524.

The previous prime is 968976653. The next prime is 968976667. The reversal of 968976661 is 166679869.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 968976661 - 2³ = 968976653 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 968976596 and 968976605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (968976667) 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, 4470 + ... + 44248.

It is an arithmetic number, because the mean of its divisors is an integer number (242260200).

Almost surely, 2^968976661 is an apocalyptic number.

It is an amenable number.

968976661 is a deficient number, since it is larger than the sum of its proper divisors (64139).

968976661 is a wasteful number, since it uses less digits than its factorization.

968976661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64138.

The product of its digits is 5878656, while the sum is 58.

The square root of 968976661 is about 31128.3899519394. The cubic root of 968976661 is about 989.5500662664.

The spelling of 968976661 in words is "nine hundred sixty-eight million, nine hundred seventy-six thousand, six hundred sixty-one".