494793731 has 4 divisors (see below), whose sum is σ = 495708864. Its totient is φ = 493878600.

The previous prime is 494793709. The next prime is 494793749. The reversal of 494793731 is 137397494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494793731 is a prime.

It is a super-2 number, since 2×494793731² = 489641672473800722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494793751) 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 3 ways as a sum of consecutive naturals, for example, 456755 + ... + 457836.

It is an arithmetic number, because the mean of its divisors is an integer number (123927216).

Almost surely, 2^494793731 is an apocalyptic number.

494793731 is a deficient number, since it is larger than the sum of its proper divisors (915133).

494793731 is an equidigital number, since it uses as much as digits as its factorization.

494793731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915132.

The product of its digits is 571536, while the sum is 47.

The square root of 494793731 is about 22243.9594272243. The cubic root of 494793731 is about 790.9360964612.

The spelling of 494793731 in words is "four hundred ninety-four million, seven hundred ninety-three thousand, seven hundred thirty-one".