499389577 has 2 divisors, whose sum is σ = 499389578. Its totient is φ = 499389576.

The previous prime is 499389563. The next prime is 499389581. The reversal of 499389577 is 775983994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427207561 + 72182016 = 20669^2 + 8496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499389577 is a prime.

It is not a weakly prime, because it can be changed into another prime (499389557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249694788 + 249694789.

It is an arithmetic number, because the mean of its divisors is an integer number (249694789).

Almost surely, 2^499389577 is an apocalyptic number.

It is an amenable number.

499389577 is a deficient number, since it is larger than the sum of its proper divisors (1).

499389577 is an equidigital number, since it uses as much as digits as its factorization.

499389577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 61.

The square root of 499389577 is about 22347.0261332465. The cubic root of 499389577 is about 793.3773990816.

The spelling of 499389577 in words is "four hundred ninety-nine million, three hundred eighty-nine thousand, five hundred seventy-seven".