728070068 has 36 divisors (see below), whose sum is σ = 1420274016. Its totient is φ = 326264400.

The previous prime is 728070029. The next prime is 728070103. The reversal of 728070068 is 860070827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23771 + ... + 44957.

It is an arithmetic number, because the mean of its divisors is an integer number (39452056).

Almost surely, 2^728070068 is an apocalyptic number.

It is an amenable number.

728070068 is a deficient number, since it is larger than the sum of its proper divisors (692203948).

728070068 is a wasteful number, since it uses less digits than its factorization.

728070068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21284 (or 21271 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 728070068 is about 26982.7735416506. The cubic root of 728070068 is about 899.6171490963.

The spelling of 728070068 in words is "seven hundred twenty-eight million, seventy thousand, sixty-eight".