493347728 has 10 divisors (see below), whose sum is σ = 955861254. Its totient is φ = 246673856.

The previous prime is 493347727. The next prime is 493347763. The reversal of 493347728 is 827743394.

It can be written as a sum of positive squares in only one way, i.e., 313573264 + 179774464 = 17708^2 + 13408^2 .

It is not an unprimeable number, because it can be changed into a prime (493347727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15417101 + ... + 15417132.

Almost surely, 2^493347728 is an apocalyptic number.

It is an amenable number.

493347728 is a deficient number, since it is larger than the sum of its proper divisors (462513526).

493347728 is a wasteful number, since it uses less digits than its factorization.

493347728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30834241 (or 30834235 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 47.

The square root of 493347728 is about 22211.4323716414. The cubic root of 493347728 is about 790.1648579732.

The spelling of 493347728 in words is "four hundred ninety-three million, three hundred forty-seven thousand, seven hundred twenty-eight".