494872947 has 6 divisors (see below), whose sum is σ = 714816492. Its totient is φ = 329915292.

The previous prime is 494872909. The next prime is 494872957. The reversal of 494872947 is 749278494.

It is a happy number.

It is not a de Polignac number, because 494872947 - 2⁶ = 494872883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 494872893 and 494872902.

It is not an unprimeable number, because it can be changed into a prime (494872957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27492933 + ... + 27492950.

It is an arithmetic number, because the mean of its divisors is an integer number (119136082).

Almost surely, 2^494872947 is an apocalyptic number.

494872947 is a deficient number, since it is larger than the sum of its proper divisors (219943545).

494872947 is a wasteful number, since it uses less digits than its factorization.

494872947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54985889 (or 54985886 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 494872947 is about 22245.7399742063. The cubic root of 494872947 is about 790.9783035780.

The spelling of 494872947 in words is "four hundred ninety-four million, eight hundred seventy-two thousand, nine hundred forty-seven".