499981197 has 8 divisors (see below), whose sum is σ = 666761344. Its totient is φ = 333260928.

The previous prime is 499981177. The next prime is 499981211. The reversal of 499981197 is 791189994.

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

It is not a de Polignac number, because 499981197 - 2¹⁴ = 499964813 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 (499981117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10908 + ... + 33450.

It is an arithmetic number, because the mean of its divisors is an integer number (83345168).

Almost surely, 2^499981197 is an apocalyptic number.

It is an amenable number.

499981197 is a deficient number, since it is larger than the sum of its proper divisors (166780147).

499981197 is a wasteful number, since it uses less digits than its factorization.

499981197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29939.

The product of its digits is 1469664, while the sum is 57.

The square root of 499981197 is about 22360.2593231832. The cubic root of 499981197 is about 793.6905765587.

The spelling of 499981197 in words is "four hundred ninety-nine million, nine hundred eighty-one thousand, one hundred ninety-seven".