836146728 has 24 divisors (see below), whose sum is σ = 2264564250. Its totient is φ = 278715552.

The previous prime is 836146721. The next prime is 836146733. The reversal of 836146728 is 827641638.

836146728 is a `hidden beast` number, since 8 + 3 + 614 + 6 + 7 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 728028324 + 108118404 = 26982^2 + 10398^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (836146721) 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, 5806503 + ... + 5806646.

Almost surely, 2^836146728 is an apocalyptic number.

It is an amenable number.

836146728 is an abundant number, since it is smaller than the sum of its proper divisors (1428417522).

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

836146728 is a wasteful number, since it uses less digits than its factorization.

836146728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11613161 (or 11613154 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 836146728 is about 28916.2018252744. The cubic root of 836146728 is about 942.0938416526.

The spelling of 836146728 in words is "eight hundred thirty-six million, one hundred forty-six thousand, seven hundred twenty-eight".