491101471 has 6 divisors (see below), whose sum is σ = 571281360. Its totient is φ = 420944076.

The previous prime is 491101469. The next prime is 491101483. The reversal of 491101471 is 174101194.

It is not a de Polignac number, because 491101471 - 2¹ = 491101469 is a prime.

It is a super-3 number, since 3×491101471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491101421) 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 5 ways as a sum of consecutive naturals, for example, 5011191 + ... + 5011288.

It is an arithmetic number, because the mean of its divisors is an integer number (95213560).

Almost surely, 2^491101471 is an apocalyptic number.

491101471 is a deficient number, since it is larger than the sum of its proper divisors (80179889).

491101471 is a wasteful number, since it uses less digits than its factorization.

491101471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10022493 (or 10022486 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 491101471 is about 22160.8093489385. The cubic root of 491101471 is about 788.9638025055.

The spelling of 491101471 in words is "four hundred ninety-one million, one hundred one thousand, four hundred seventy-one".