999603061 has 2 divisors, whose sum is σ = 999603062. Its totient is φ = 999603060.

The previous prime is 999603047. The next prime is 999603103. The reversal of 999603061 is 160306999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 955180836 + 44422225 = 30906^2 + 6665^2 .

It is an emirp because it is prime and its reverse (160306999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999603061 - 2¹⁷ = 999471989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999602999 and 999603017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999603041) 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, 499801530 + 499801531.

It is an arithmetic number, because the mean of its divisors is an integer number (499801531).

Almost surely, 2^999603061 is an apocalyptic number.

It is an amenable number.

999603061 is a deficient number, since it is larger than the sum of its proper divisors (1).

999603061 is an equidigital number, since it uses as much as digits as its factorization.

999603061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 999603061 is about 31616.4998220866. The cubic root of 999603061 is about 999.8676694894.

The spelling of 999603061 in words is "nine hundred ninety-nine million, six hundred three thousand, sixty-one".