728068613 has 8 divisors (see below), whose sum is σ = 739266528. Its totient is φ = 716928624.

The previous prime is 728068591. The next prime is 728068637. The reversal of 728068613 is 316860827.

It is a happy number.

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 728068613 - 2⁸ = 728068357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728068213) 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, 11195 + ... + 39767.

It is an arithmetic number, because the mean of its divisors is an integer number (92408316).

Almost surely, 2^728068613 is an apocalyptic number.

It is an amenable number.

728068613 is a deficient number, since it is larger than the sum of its proper divisors (11197915).

728068613 is a wasteful number, since it uses less digits than its factorization.

728068613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28963.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 728068613 is about 26982.7465799907. The cubic root of 728068613 is about 899.6165498208.

The spelling of 728068613 in words is "seven hundred twenty-eight million, sixty-eight thousand, six hundred thirteen".