499969599 has 32 divisors (see below), whose sum is σ = 705888000. Its totient is φ = 314302464.

The previous prime is 499969583. The next prime is 499969669. The reversal of 499969599 is 995969994.

It is a happy number.

It is a Cunningham number, because it is equal to 22360²-1.

It is not a de Polignac number, because 499969599 - 2⁴ = 499969583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499969529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1318992 + ... + 1319370.

It is an arithmetic number, because the mean of its divisors is an integer number (22059000).

Almost surely, 2^499969599 is an apocalyptic number.

499969599 is a deficient number, since it is larger than the sum of its proper divisors (205918401).

499969599 is a wasteful number, since it uses less digits than its factorization.

499969599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727.

The product of its digits is 63772920, while the sum is 69.

The square root of 499969599 is about 22359.9999776386. Note that the first 4 decimals coincide. The cubic root of 499969599 is about 793.6844394649.

It can be divided in two parts, 49996 and 9599, that added together give a palindrome (59595).

The spelling of 499969599 in words is "four hundred ninety-nine million, nine hundred sixty-nine thousand, five hundred ninety-nine".