930905849 has 2 divisors, whose sum is σ = 930905850. Its totient is φ = 930905848.

The previous prime is 930905827. The next prime is 930905897. The reversal of 930905849 is 948509039.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 609349225 + 321556624 = 24685^2 + 17932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-930905849 is a prime.

It is not a weakly prime, because it can be changed into another prime (930905819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 465452924 + 465452925.

It is an arithmetic number, because the mean of its divisors is an integer number (465452925).

Almost surely, 2^930905849 is an apocalyptic number.

It is an amenable number.

930905849 is a deficient number, since it is larger than the sum of its proper divisors (1).

930905849 is an equidigital number, since it uses as much as digits as its factorization.

930905849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 930905849 is about 30510.7497285793. The cubic root of 930905849 is about 976.4168221100.

The spelling of 930905849 in words is "nine hundred thirty million, nine hundred five thousand, eight hundred forty-nine".