498661451 has 4 divisors (see below), whose sum is σ = 507113400. Its totient is φ = 490209504.

The previous prime is 498661447. The next prime is 498661453. The reversal of 498661451 is 154166894.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 498661451 - 2² = 498661447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (498661453) 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 in 3 ways as a sum of consecutive naturals, for example, 4225886 + ... + 4226003.

It is an arithmetic number, because the mean of its divisors is an integer number (126778350).

Almost surely, 2^498661451 is an apocalyptic number.

498661451 is a deficient number, since it is larger than the sum of its proper divisors (8451949).

498661451 is an equidigital number, since it uses as much as digits as its factorization.

498661451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8451948.

The product of its digits is 207360, while the sum is 44.

The square root of 498661451 is about 22330.7288506220. The cubic root of 498661451 is about 792.9916216416.

The spelling of 498661451 in words is "four hundred ninety-eight million, six hundred sixty-one thousand, four hundred fifty-one".