493247999 has 32 divisors (see below), whose sum is σ = 554769600. Its totient is φ = 436700160.

The previous prime is 493247981. The next prime is 493248023. The reversal of 493247999 is 999742394.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493247999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493247929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3141629 + ... + 3141785.

It is an arithmetic number, because the mean of its divisors is an integer number (17336550).

Almost surely, 2^493247999 is an apocalyptic number.

493247999 is a deficient number, since it is larger than the sum of its proper divisors (61521601).

493247999 is a wasteful number, since it uses less digits than its factorization.

493247999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 4408992, while the sum is 56.

The square root of 493247999 is about 22209.1872656340. The cubic root of 493247999 is about 790.1116111069. Note that the first 3 decimals are identical.

It can be divided in two parts, 49 and 3247999, that multiplied together give a palindrome (159151951).

The spelling of 493247999 in words is "four hundred ninety-three million, two hundred forty-seven thousand, nine hundred ninety-nine".