728418263 has 8 divisors (see below), whose sum is σ = 741994176. Its totient is φ = 714895200.

The previous prime is 728418247. The next prime is 728418283. The reversal of 728418263 is 362814827.

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 728418263 - 2⁴ = 728418247 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 728418263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728418203) 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 7 ways as a sum of consecutive naturals, for example, 15170 + ... + 41072.

It is an arithmetic number, because the mean of its divisors is an integer number (92749272).

Almost surely, 2^728418263 is an apocalyptic number.

728418263 is a deficient number, since it is larger than the sum of its proper divisors (13575913).

728418263 is a wasteful number, since it uses less digits than its factorization.

728418263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26425.

The product of its digits is 129024, while the sum is 41.

The square root of 728418263 is about 26989.2249425581. The cubic root of 728418263 is about 899.7605383501.

The spelling of 728418263 in words is "seven hundred twenty-eight million, four hundred eighteen thousand, two hundred sixty-three".