837680005 has 4 divisors (see below), whose sum is σ = 1005216012. Its totient is φ = 670144000.

The previous prime is 837680003. The next prime is 837680009. The reversal of 837680005 is 500086738.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500086738 = 2 ⋅250043369.

It can be written as a sum of positive squares in 2 ways, for example, as 590781636 + 246898369 = 24306^2 + 15713^2 .

It is not a de Polignac number, because 837680005 - 2¹ = 837680003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (837680003) 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 3 ways as a sum of consecutive naturals, for example, 83767996 + ... + 83768005.

It is an arithmetic number, because the mean of its divisors is an integer number (251304003).

Almost surely, 2^837680005 is an apocalyptic number.

It is an amenable number.

837680005 is a deficient number, since it is larger than the sum of its proper divisors (167536007).

837680005 is a wasteful number, since it uses less digits than its factorization.

837680005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167536006.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 837680005 is about 28942.7021026027. The cubic root of 837680005 is about 942.6693422310.

The spelling of 837680005 in words is "eight hundred thirty-seven million, six hundred eighty thousand, five".