931323641 has 2 divisors, whose sum is σ = 931323642. Its totient is φ = 931323640.

The previous prime is 931323629. The next prime is 931323649. The reversal of 931323641 is 146323139.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659205625 + 272118016 = 25675^2 + 16496^2 .

It is a cyclic number.

It is not a de Polignac number, because 931323641 - 2¹⁴ = 931307257 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 931323598 and 931323607.

It is not a weakly prime, because it can be changed into another prime (931323649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465661820 + 465661821.

It is an arithmetic number, because the mean of its divisors is an integer number (465661821).

Almost surely, 2^931323641 is an apocalyptic number.

It is an amenable number.

931323641 is a deficient number, since it is larger than the sum of its proper divisors (1).

931323641 is an equidigital number, since it uses as much as digits as its factorization.

931323641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 931323641 is about 30517.5955966390. The cubic root of 931323641 is about 976.5628727283.

The spelling of 931323641 in words is "nine hundred thirty-one million, three hundred twenty-three thousand, six hundred forty-one".