499999597 has 8 divisors (see below), whose sum is σ = 535361400. Its totient is φ = 465298944.

The previous prime is 499999547. The next prime is 499999613. The reversal of 499999597 is 795999994.

It can be written as a sum of positive squares in 4 ways, for example, as 9554281 + 490445316 = 3091^2 + 22146^2 .

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 499999597 - 2¹⁹ = 499475309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499999517) 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, 163722 + ... + 166747.

It is an arithmetic number, because the mean of its divisors is an integer number (66920175).

Almost surely, 2^499999597 is an apocalyptic number.

It is an amenable number.

499999597 is a deficient number, since it is larger than the sum of its proper divisors (35361803).

499999597 is a wasteful number, since it uses less digits than its factorization.

499999597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330575.

The product of its digits is 74401740, while the sum is 70.

The square root of 499999597 is about 22360.6707636421. The cubic root of 499999597 is about 793.7003127432.

The spelling of 499999597 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred ninety-seven".