946831321 has 2 divisors, whose sum is σ = 946831322. Its totient is φ = 946831320.

The previous prime is 946831307. The next prime is 946831343. The reversal of 946831321 is 123138649.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813105225 + 133726096 = 28515^2 + 11564^2 .

It is a cyclic number.

It is not a de Polignac number, because 946831321 - 2⁹ = 946830809 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (946831021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473415660 + 473415661.

It is an arithmetic number, because the mean of its divisors is an integer number (473415661).

Almost surely, 2^946831321 is an apocalyptic number.

It is an amenable number.

946831321 is a deficient number, since it is larger than the sum of its proper divisors (1).

946831321 is an equidigital number, since it uses as much as digits as its factorization.

946831321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 946831321 is about 30770.6243193082. The cubic root of 946831321 is about 981.9533858602.

The spelling of 946831321 in words is "nine hundred forty-six million, eight hundred thirty-one thousand, three hundred twenty-one".