836861853 has 16 divisors (see below), whose sum is σ = 1133987840. Its totient is φ = 548861184.

The previous prime is 836861803. The next prime is 836861863. The reversal of 836861853 is 358168638.

It is not a de Polignac number, because 836861853 - 2¹⁷ = 836730781 is a prime.

It is a super-2 number, since 2×836861853² = 1400675522013187218, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (836861803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84900 + ... + 94242.

It is an arithmetic number, because the mean of its divisors is an integer number (70874240).

Almost surely, 2^836861853 is an apocalyptic number.

It is an amenable number.

836861853 is a deficient number, since it is larger than the sum of its proper divisors (297125987).

836861853 is a wasteful number, since it uses less digits than its factorization.

836861853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9828.

The product of its digits is 829440, while the sum is 48.

The square root of 836861853 is about 28928.5646550257. The cubic root of 836861853 is about 942.3623443207.

The spelling of 836861853 in words is "eight hundred thirty-six million, eight hundred sixty-one thousand, eight hundred fifty-three".