728802145 has 8 divisors (see below), whose sum is σ = 882736704. Its totient is φ = 577592304.

The previous prime is 728802079. The next prime is 728802181. The reversal of 728802145 is 541208827.

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 728802145 - 2⁷ = 728802017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680589 + ... + 681658.

It is an arithmetic number, because the mean of its divisors is an integer number (110342088).

Almost surely, 2^728802145 is an apocalyptic number.

It is an amenable number.

728802145 is a deficient number, since it is larger than the sum of its proper divisors (153934559).

728802145 is a wasteful number, since it uses less digits than its factorization.

728802145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362359.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 728802145 is about 26996.3357698781. The cubic root of 728802145 is about 899.9185708221.

The spelling of 728802145 in words is "seven hundred twenty-eight million, eight hundred two thousand, one hundred forty-five".