498109639 has 8 divisors (see below), whose sum is σ = 529420320. Its totient is φ = 467022336.

The previous prime is 498109637. The next prime is 498109693. The reversal of 498109639 is 936901894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 498109639 - 2¹ = 498109637 is a prime.

It is a super-2 number, since 2×498109639² = 496226424929420642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 498109592 and 498109601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498109631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51234 + ... + 60175.

It is an arithmetic number, because the mean of its divisors is an integer number (66177540).

Almost surely, 2^498109639 is an apocalyptic number.

498109639 is a deficient number, since it is larger than the sum of its proper divisors (31310681).

498109639 is a wasteful number, since it uses less digits than its factorization.

498109639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111689.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 498109639 is about 22318.3699897640. The cubic root of 498109639 is about 792.6990090894.

The spelling of 498109639 in words is "four hundred ninety-eight million, one hundred nine thousand, six hundred thirty-nine".