836728 has 16 divisors (see below), whose sum is σ = 1607760. Its totient is φ = 408000.

The previous prime is 836713. The next prime is 836729. The reversal of 836728 is 827638.

It is a happy number.

It is a super-2 number, since 2×836728² = 1400227491968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 836693 and 836702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (836729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (100485).

2⁸³⁶⁷²⁸ is an apocalyptic number.

It is an amenable number.

836728 is a deficient number, since it is larger than the sum of its proper divisors (771032).

836728 is a wasteful number, since it uses less digits than its factorization.

836728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598 (or 2594 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 836728 is about 914.7283749835. The cubic root of 836728 is about 94.2312099169.

The spelling of 836728 in words is "eight hundred thirty-six thousand, seven hundred twenty-eight".