836681313 has 16 divisors (see below), whose sum is σ = 1208506880. Its totient is φ = 514876752.

The previous prime is 836681303. The next prime is 836681353. The reversal of 836681313 is 313186638.

It is not a de Polignac number, because 836681313 - 2⁴ = 836681297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (836681303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56881 + ... + 70062.

It is an arithmetic number, because the mean of its divisors is an integer number (75531680).

Almost surely, 2^836681313 is an apocalyptic number.

It is an amenable number.

836681313 is a deficient number, since it is larger than the sum of its proper divisors (371825567).

836681313 is a wasteful number, since it uses less digits than its factorization.

836681313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126985 (or 126959 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 836681313 is about 28925.4440415355. Note that the first 3 decimals coincide. The cubic root of 836681313 is about 942.2945727472.

The spelling of 836681313 in words is "eight hundred thirty-six million, six hundred eighty-one thousand, three hundred thirteen".