836141728 has 12 divisors (see below), whose sum is σ = 1646154090. Its totient is φ = 418070848.

The previous prime is 836141723. The next prime is 836141771. The reversal of 836141728 is 827141638.

It can be written as a sum of positive squares in only one way, i.e., 742671504 + 93470224 = 27252^2 + 9668^2 .

It is not an unprimeable number, because it can be changed into a prime (836141723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13064683 + ... + 13064746.

Almost surely, 2^836141728 is an apocalyptic number.

It is an amenable number.

836141728 is a deficient number, since it is larger than the sum of its proper divisors (810012362).

836141728 is a wasteful number, since it uses less digits than its factorization.

836141728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26129439 (or 26129431 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 836141728 is about 28916.1153684239. The cubic root of 836141728 is about 942.0919638009.

The spelling of 836141728 in words is "eight hundred thirty-six million, one hundred forty-one thousand, seven hundred twenty-eight".