498661447 has 2 divisors, whose sum is σ = 498661448. Its totient is φ = 498661446.

The previous prime is 498661439. The next prime is 498661453. The reversal of 498661447 is 744166894.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 498661447 - 2³ = 498661439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 498661447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498661477) 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, 249330723 + 249330724.

It is an arithmetic number, because the mean of its divisors is an integer number (249330724).

Almost surely, 2^498661447 is an apocalyptic number.

498661447 is a deficient number, since it is larger than the sum of its proper divisors (1).

498661447 is an equidigital number, since it uses as much as digits as its factorization.

498661447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 49.

The square root of 498661447 is about 22330.7287610593. The cubic root of 498661447 is about 792.9916195212.

The spelling of 498661447 in words is "four hundred ninety-eight million, six hundred sixty-one thousand, four hundred forty-seven".