728750067 has 16 divisors (see below), whose sum is σ = 1040389920. Its totient is φ = 452114432.

The previous prime is 728750063. The next prime is 728750069. The reversal of 728750067 is 760057827.

It is a cyclic number.

It is not a de Polignac number, because 728750067 - 2² = 728750063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728750063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75738 + ... + 84815.

It is an arithmetic number, because the mean of its divisors is an integer number (65024370).

Almost surely, 2^728750067 is an apocalyptic number.

728750067 is a deficient number, since it is larger than the sum of its proper divisors (311639853).

728750067 is a wasteful number, since it uses less digits than its factorization.

728750067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160662.

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 728750067 is about 26995.3712143397. The cubic root of 728750067 is about 899.8971351572.

The spelling of 728750067 in words is "seven hundred twenty-eight million, seven hundred fifty thousand, sixty-seven".