491371316 has 12 divisors (see below), whose sum is σ = 863171232. Its totient is φ = 244750968.

The previous prime is 491371313. The next prime is 491371319. The reversal of 491371316 is 613173194.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (491371313) and next prime (491371319).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491371313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232490 + ... + 234593.

It is an arithmetic number, because the mean of its divisors is an integer number (71930936).

Almost surely, 2^491371316 is an apocalyptic number.

It is an amenable number.

491371316 is a deficient number, since it is larger than the sum of its proper divisors (371799916).

491371316 is a wasteful number, since it uses less digits than its factorization.

491371316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467350 (or 467348 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 491371316 is about 22166.8968509352. The cubic root of 491371316 is about 789.1082797458.

The spelling of 491371316 in words is "four hundred ninety-one million, three hundred seventy-one thousand, three hundred sixteen".