493797491 has 18 divisors (see below), whose sum is σ = 554075340. Its totient is φ = 439620280.

The previous prime is 493797467. The next prime is 493797497. The reversal of 493797491 is 194797394.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-493797491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493797497) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1877426 + ... + 1877688.

Almost surely, 2^493797491 is an apocalyptic number.

493797491 is a deficient number, since it is larger than the sum of its proper divisors (60277849).

493797491 is an equidigital number, since it uses as much as digits as its factorization.

493797491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 333 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 53.

The square root of 493797491 is about 22221.5546485839. The cubic root of 493797491 is about 790.4049043305.

The spelling of 493797491 in words is "four hundred ninety-three million, seven hundred ninety-seven thousand, four hundred ninety-one".