967921 has 4 divisors (see below), whose sum is σ = 969892. Its totient is φ = 965952.

The previous prime is 967919. The next prime is 967931. The reversal of 967921 is 129769.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 505521 + 462400 = 711^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 967921 - 2¹ = 967919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (967931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421 + ... + 1453.

It is an arithmetic number, because the mean of its divisors is an integer number (242473).

2⁹⁶⁷⁹²¹ is an apocalyptic number.

It is an amenable number.

967921 is a deficient number, since it is larger than the sum of its proper divisors (1971).

967921 is a wasteful number, since it uses less digits than its factorization.

967921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970.

The product of its digits is 6804, while the sum is 34.

The square root of 967921 is about 983.8297616966. The cubic root of 967921 is about 98.9190577387.

The spelling of 967921 in words is "nine hundred sixty-seven thousand, nine hundred twenty-one".