728053 has 4 divisors (see below), whose sum is σ = 730080. Its totient is φ = 726028.

The previous prime is 728047. The next prime is 728069. The reversal of 728053 is 350827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 350827 = 31 ⋅11317.

It is a cyclic number.

It is not a de Polignac number, because 728053 - 2⁹ = 727541 is a prime.

It is a super-2 number, since 2×728053² = 1060122341618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (182520).

2⁷²⁸⁰⁵³ is an apocalyptic number.

It is an amenable number.

728053 is a deficient number, since it is larger than the sum of its proper divisors (2027).

728053 is a wasteful number, since it uses less digits than its factorization.

728053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 728053 is about 853.2602182219. The cubic root of 728053 is about 89.9610119194.

The spelling of 728053 in words is "seven hundred twenty-eight thousand, fifty-three".