499999693 has 2 divisors, whose sum is σ = 499999694. Its totient is φ = 499999692.

The previous prime is 499999613. The next prime is 499999697. The reversal of 499999693 is 396999994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306845289 + 193154404 = 17517^2 + 13898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499999693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499999697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249999846 + 249999847.

It is an arithmetic number, because the mean of its divisors is an integer number (249999847).

Almost surely, 2^499999693 is an apocalyptic number.

It is an amenable number.

499999693 is a deficient number, since it is larger than the sum of its proper divisors (1).

499999693 is an equidigital number, since it uses as much as digits as its factorization.

499999693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38263752, while the sum is 67.

The square root of 499999693 is about 22360.6729102682. The cubic root of 499999693 is about 793.7003635400.

The spelling of 499999693 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, six hundred ninety-three".