999993461 has 2 divisors, whose sum is σ = 999993462. Its totient is φ = 999993460.

The previous prime is 999993439. The next prime is 999993469. The reversal of 999993461 is 164399999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 991053361 + 8940100 = 31481^2 + 2990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999993461 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999993461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999993469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499996730 + 499996731.

It is an arithmetic number, because the mean of its divisors is an integer number (499996731).

Almost surely, 2^999993461 is an apocalyptic number.

It is an amenable number.

999993461 is a deficient number, since it is larger than the sum of its proper divisors (1).

999993461 is an equidigital number, since it uses as much as digits as its factorization.

999993461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4251528, while the sum is 59.

The square root of 999993461 is about 31622.6732108467. The cubic root of 999993461 is about 999.9978203286.

The spelling of 999993461 in words is "nine hundred ninety-nine million, nine hundred ninety-three thousand, four hundred sixty-one".