494947647 has 12 divisors (see below), whose sum is σ = 730136160. Its totient is φ = 322944288.

The previous prime is 494947627. The next prime is 494947657. The reversal of 494947647 is 746749494.

494947647 is a `hidden beast` number, since 49 + 494 + 76 + 47 = 666.

It is not a de Polignac number, because 494947647 - 2¹⁴ = 494931263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 494947593 and 494947602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494947627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584622 + ... + 585467.

It is an arithmetic number, because the mean of its divisors is an integer number (60844680).

Almost surely, 2^494947647 is an apocalyptic number.

494947647 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

494947647 is a deficient number, since it is larger than the sum of its proper divisors (235188513).

494947647 is a wasteful number, since it uses less digits than its factorization.

494947647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170142 (or 1170139 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 494947647 is about 22247.4188839964. The cubic root of 494947647 is about 791.0181003965.

It can be divided in two parts, 494947 and 647, that added together give a palindrome (495594).

The spelling of 494947647 in words is "four hundred ninety-four million, nine hundred forty-seven thousand, six hundred forty-seven".