728648153 has 4 divisors (see below), whose sum is σ = 728792628. Its totient is φ = 728503680.

The previous prime is 728648131. The next prime is 728648161. The reversal of 728648153 is 351846827.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 698650624 + 29997529 = 26432^2 + 5477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728648153 is a prime.

It is a super-2 number, since 2×728648153² = 1061856261740622818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728648183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64388 + ... + 74853.

It is an arithmetic number, because the mean of its divisors is an integer number (182198157).

Almost surely, 2^728648153 is an apocalyptic number.

It is an amenable number.

728648153 is a deficient number, since it is larger than the sum of its proper divisors (144475).

728648153 is a wasteful number, since it uses less digits than its factorization.

728648153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144474.

The product of its digits is 322560, while the sum is 44.

The square root of 728648153 is about 26993.4835284370. The cubic root of 728648153 is about 899.8551836952.

The spelling of 728648153 in words is "seven hundred twenty-eight million, six hundred forty-eight thousand, one hundred fifty-three".