804529728 has 42 divisors (see below), whose sum is σ = 2306040854. Its totient is φ = 268176384.

The previous prime is 804529727. The next prime is 804529729. The reversal of 804529728 is 827925408.

It is an interprime number because it is at equal distance from previous prime (804529727) and next prime (804529729).

It can be written as a sum of positive squares in only one way, i.e., 585252864 + 219276864 = 24192^2 + 14808^2 .

It is not an unprimeable number, because it can be changed into a prime (804529721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 697801 + ... + 698952.

Almost surely, 2^804529728 is an apocalyptic number.

It is an amenable number.

804529728 is an abundant number, since it is smaller than the sum of its proper divisors (1501511126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

804529728 is a wasteful number, since it uses less digits than its factorization.

804529728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396771 (or 1396758 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 804529728 is about 28364.2332524607. The cubic root of 804529728 is about 930.0665647811.

It can be divided in two parts, 8045 and 29728, that added together give a palindrome (37773).

The spelling of 804529728 in words is "eight hundred four million, five hundred twenty-nine thousand, seven hundred twenty-eight".