491360093 has 12 divisors (see below), whose sum is σ = 572298012. Its totient is φ = 420638400.

The previous prime is 491360087. The next prime is 491360117. The reversal of 491360093 is 390063194.

It can be written as a sum of positive squares in 2 ways, for example, as 423824569 + 67535524 = 20587^2 + 8218^2 .

It is not a de Polignac number, because 491360093 - 2¹⁴ = 491343709 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 (491360053) 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 11 ways as a sum of consecutive naturals, for example, 36143 + ... + 47843.

It is an arithmetic number, because the mean of its divisors is an integer number (47691501).

Almost surely, 2^491360093 is an apocalyptic number.

It is an amenable number.

491360093 is a deficient number, since it is larger than the sum of its proper divisors (80937919).

491360093 is a wasteful number, since it uses less digits than its factorization.

491360093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12572 (or 12565 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 491360093 is about 22166.6437017425. The cubic root of 491360093 is about 789.1022719133.

The spelling of 491360093 in words is "four hundred ninety-one million, three hundred sixty thousand, ninety-three".