499989619 has 4 divisors (see below), whose sum is σ = 510627744. Its totient is φ = 489351496.

The previous prime is 499989599. The next prime is 499989641. The reversal of 499989619 is 916989994.

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 499989619 - 2⁵ = 499989587 is a prime.

It is a super-2 number, since 2×499989619² = 499979238215530322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499989419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5318992 + ... + 5319085.

It is an arithmetic number, because the mean of its divisors is an integer number (127656936).

Almost surely, 2^499989619 is an apocalyptic number.

499989619 is a deficient number, since it is larger than the sum of its proper divisors (10638125).

499989619 is a wasteful number, since it uses less digits than its factorization.

499989619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10638124.

The product of its digits is 11337408, while the sum is 64.

The square root of 499989619 is about 22360.4476475763. The cubic root of 499989619 is about 793.6950330093.

The spelling of 499989619 in words is "four hundred ninety-nine million, nine hundred eighty-nine thousand, six hundred nineteen".