491347373 has 16 divisors (see below), whose sum is σ = 548985600. Its totient is φ = 436001280.

The previous prime is 491347361. The next prime is 491347421. The reversal of 491347373 is 373743194.

It is a happy number.

It is not a de Polignac number, because 491347373 - 2¹² = 491343277 is a prime.

It is a super-2 number, since 2×491347373² = 482844481908002258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 491347373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491347343) 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 15 ways as a sum of consecutive naturals, for example, 74165 + ... + 80517.

It is an arithmetic number, because the mean of its divisors is an integer number (34311600).

Almost surely, 2^491347373 is an apocalyptic number.

It is an amenable number.

491347373 is a deficient number, since it is larger than the sum of its proper divisors (57638227).

491347373 is a wasteful number, since it uses less digits than its factorization.

491347373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532.

The product of its digits is 190512, while the sum is 41.

The square root of 491347373 is about 22166.3567822951. The cubic root of 491347373 is about 789.0954626047.

The spelling of 491347373 in words is "four hundred ninety-one million, three hundred forty-seven thousand, three hundred seventy-three".