499791489 has 16 divisors (see below), whose sum is σ = 670536384. Its totient is φ = 331128000.

The previous prime is 499791443. The next prime is 499791491. The reversal of 499791489 is 984197994.

It is not a de Polignac number, because 499791489 - 2¹¹ = 499789441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (499791289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475014 + ... + 476064.

It is an arithmetic number, because the mean of its divisors is an integer number (41908524).

Almost surely, 2^499791489 is an apocalyptic number.

It is an amenable number.

499791489 is a deficient number, since it is larger than the sum of its proper divisors (170744895).

499791489 is a wasteful number, since it uses less digits than its factorization.

499791489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888.

The product of its digits is 5878656, while the sum is 60.

The square root of 499791489 is about 22356.0168411101. The cubic root of 499791489 is about 793.5901804503.

The spelling of 499791489 in words is "four hundred ninety-nine million, seven hundred ninety-one thousand, four hundred eighty-nine".