491498375 has 16 divisors (see below), whose sum is σ = 614648736. Its totient is φ = 392392000.

The previous prime is 491498369. The next prime is 491498389. The reversal of 491498375 is 573894194.

It is not a de Polignac number, because 491498375 - 2¹⁶ = 491432839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 61352 + ... + 68898.

It is an arithmetic number, because the mean of its divisors is an integer number (38415546).

Almost surely, 2^491498375 is an apocalyptic number.

491498375 is a deficient number, since it is larger than the sum of its proper divisors (123150361).

491498375 is an equidigital number, since it uses as much as digits as its factorization.

491498375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8083 (or 8073 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 50.

The square root of 491498375 is about 22169.7626284090. The cubic root of 491498375 is about 789.1762898669.

The spelling of 491498375 in words is "four hundred ninety-one million, four hundred ninety-eight thousand, three hundred seventy-five".