967984721 has 8 divisors (see below), whose sum is σ = 1057730304. Its totient is φ = 878530320.

The previous prime is 967984679. The next prime is 967984723. The reversal of 967984721 is 127489769.

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

It is a cyclic number.

It is not a de Polignac number, because 967984721 - 2¹⁸ = 967722577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (967984723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65810 + ... + 79163.

It is an arithmetic number, because the mean of its divisors is an integer number (132216288).

Almost surely, 2^967984721 is an apocalyptic number.

It is an amenable number.

967984721 is a deficient number, since it is larger than the sum of its proper divisors (89745583).

967984721 is a wasteful number, since it uses less digits than its factorization.

967984721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145591.

The product of its digits is 1524096, while the sum is 53.

The square root of 967984721 is about 31112.4528284094. The cubic root of 967984721 is about 989.2122839894.

The spelling of 967984721 in words is "nine hundred sixty-seven million, nine hundred eighty-four thousand, seven hundred twenty-one".