499993453 has 2 divisors, whose sum is σ = 499993454. Its totient is φ = 499993452.

The previous prime is 499993447. The next prime is 499993457. The reversal of 499993453 is 354399994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274332969 + 225660484 = 16563^2 + 15022^2 .

It is a cyclic number.

It is not a de Polignac number, because 499993453 - 2⁵ = 499993421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 499993394 and 499993403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499993457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249996726 + 249996727.

It is an arithmetic number, because the mean of its divisors is an integer number (249996727).

Almost surely, 2^499993453 is an apocalyptic number.

It is an amenable number.

499993453 is a deficient number, since it is larger than the sum of its proper divisors (1).

499993453 is an equidigital number, since it uses as much as digits as its factorization.

499993453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4723920, while the sum is 55.

The square root of 499993453 is about 22360.5333791482. The cubic root of 499993453 is about 793.6970617308.

The spelling of 499993453 in words is "four hundred ninety-nine million, nine hundred ninety-three thousand, four hundred fifty-three".