499497457 has 2 divisors, whose sum is σ = 499497458. Its totient is φ = 499497456.

The previous prime is 499497443. The next prime is 499497461. The reversal of 499497457 is 754794994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 465869056 + 33628401 = 21584^2 + 5799^2 .

It is a cyclic number.

It is not a de Polignac number, because 499497457 - 2¹⁹ = 498973169 is a prime.

It is not a weakly prime, because it can be changed into another prime (499497407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249748728 + 249748729.

It is an arithmetic number, because the mean of its divisors is an integer number (249748729).

Almost surely, 2^499497457 is an apocalyptic number.

It is an amenable number.

499497457 is a deficient number, since it is larger than the sum of its proper divisors (1).

499497457 is an equidigital number, since it uses as much as digits as its factorization.

499497457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 58.

The square root of 499497457 is about 22349.4397468930. The cubic root of 499497457 is about 793.4345244171.

The spelling of 499497457 in words is "four hundred ninety-nine million, four hundred ninety-seven thousand, four hundred fifty-seven".