491703916 has 24 divisors (see below), whose sum is σ = 942071760. Its totient is φ = 222700800.

The previous prime is 491703911. The next prime is 491703967. The reversal of 491703916 is 619307194.

It is not an unprimeable number, because it can be changed into a prime (491703911) 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, 7521 + ... + 32248.

It is an arithmetic number, because the mean of its divisors is an integer number (39252990).

Almost surely, 2^491703916 is an apocalyptic number.

It is an amenable number.

491703916 is a deficient number, since it is larger than the sum of its proper divisors (450367844).

491703916 is a wasteful number, since it uses less digits than its factorization.

491703916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40065 (or 40063 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 491703916 is about 22174.3977595785. The cubic root of 491703916 is about 789.2862837725.

It can be divided in two parts, 491 and 703916, that added together give a palindrome (704407).

The spelling of 491703916 in words is "four hundred ninety-one million, seven hundred three thousand, nine hundred sixteen".