498993785 has 4 divisors (see below), whose sum is σ = 598792548. Its totient is φ = 399195024.

The previous prime is 498993769. The next prime is 498993799. The reversal of 498993785 is 587399894.

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

It can be written as a sum of positive squares in 2 ways, for example, as 257377849 + 241615936 = 16043^2 + 15544^2 .

It is a cyclic number.

It is not a de Polignac number, because 498993785 - 2⁴ = 498993769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 49899374 + ... + 49899383.

It is an arithmetic number, because the mean of its divisors is an integer number (149698137).

Almost surely, 2^498993785 is an apocalyptic number.

It is an amenable number.

498993785 is a deficient number, since it is larger than the sum of its proper divisors (99798763).

498993785 is an equidigital number, since it uses as much as digits as its factorization.

498993785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99798762.

The product of its digits is 19595520, while the sum is 62.

The square root of 498993785 is about 22338.1687924503. The cubic root of 498993785 is about 793.1677461803.

The spelling of 498993785 in words is "four hundred ninety-eight million, nine hundred ninety-three thousand, seven hundred eighty-five".