728253015 has 64 divisors (see below), whose sum is σ = 1369460736. Its totient is φ = 323569152.

The previous prime is 728253007. The next prime is 728253041. The reversal of 728253015 is 510352827.

It is not a de Polignac number, because 728253015 - 2³ = 728253007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 853329 + ... + 854181.

It is an arithmetic number, because the mean of its divisors is an integer number (21397824).

Almost surely, 2^728253015 is an apocalyptic number.

728253015 is a deficient number, since it is larger than the sum of its proper divisors (641207721).

728253015 is a wasteful number, since it uses less digits than its factorization.

728253015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 728253015 is about 26986.1633990458. The cubic root of 728253015 is about 899.6924937106.

The spelling of 728253015 in words is "seven hundred twenty-eight million, two hundred fifty-three thousand, fifteen".