493228913 has 8 divisors (see below), whose sum is σ = 496174536. Its totient is φ = 490291200.

The previous prime is 493228867. The next prime is 493228919. The reversal of 493228913 is 319822394.

It can be written as a sum of positive squares in 4 ways, for example, as 232471009 + 260757904 = 15247^2 + 16148^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 493228913 - 2²⁴ = 476451697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493228919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160673 + ... + 163713.

It is an arithmetic number, because the mean of its divisors is an integer number (62021817).

Almost surely, 2^493228913 is an apocalyptic number.

It is an amenable number.

493228913 is a deficient number, since it is larger than the sum of its proper divisors (2945623).

493228913 is a wasteful number, since it uses less digits than its factorization.

493228913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955.

The product of its digits is 93312, while the sum is 41.

The square root of 493228913 is about 22208.7575744345. The cubic root of 493228913 is about 790.1014199760.

The spelling of 493228913 in words is "four hundred ninety-three million, two hundred twenty-eight thousand, nine hundred thirteen".