960509021 has 2 divisors, whose sum is σ = 960509022. Its totient is φ = 960509020.

The previous prime is 960508963. The next prime is 960509023. The reversal of 960509021 is 120905069.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 816244900 + 144264121 = 28570^2 + 12011^2 .

It is a cyclic number.

It is not a de Polignac number, because 960509021 - 2¹⁰ = 960507997 is a prime.

Together with 960509023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (960509023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480254510 + 480254511.

It is an arithmetic number, because the mean of its divisors is an integer number (480254511).

Almost surely, 2^960509021 is an apocalyptic number.

It is an amenable number.

960509021 is a deficient number, since it is larger than the sum of its proper divisors (1).

960509021 is an equidigital number, since it uses as much as digits as its factorization.

960509021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 960509021 is about 30992.0799721477. The cubic root of 960509021 is about 986.6591536108.

The spelling of 960509021 in words is "nine hundred sixty million, five hundred nine thousand, twenty-one".