728053833 has 8 divisors (see below), whose sum is σ = 1045410688. Its totient is φ = 448033104.

The previous prime is 728053831. The next prime is 728053841. The reversal of 728053833 is 338350827.

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

It is not a de Polignac number, because 728053833 - 2¹ = 728053831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 18668047 = 728053833 / (7 + 2 + 8 + 0 + 5 + 3 + 8 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 728053791 and 728053800.

It is not an unprimeable number, because it can be changed into a prime (728053831) 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, 9333985 + ... + 9334062.

It is an arithmetic number, because the mean of its divisors is an integer number (130676336).

Almost surely, 2^728053833 is an apocalyptic number.

It is an amenable number.

728053833 is a deficient number, since it is larger than the sum of its proper divisors (317356855).

728053833 is a wasteful number, since it uses less digits than its factorization.

728053833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18668063.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 728053833 is about 26982.4726998843. The cubic root of 728053833 is about 899.6104622889.

The spelling of 728053833 in words is "seven hundred twenty-eight million, fifty-three thousand, eight hundred thirty-three".