2684396837 has 4 divisors (see below), whose sum is σ = 2684693676. Its totient is φ = 2684100000.

The previous prime is 2684396831. The next prime is 2684396851. The reversal of 2684396837 is 7386934862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1608491236 + 1075905601 = 40106^2 + 32801^2 .

It is a cyclic number.

It is not a de Polignac number, because 2684396837 - 2¹² = 2684392741 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 (2684396831) 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, 134414 + ... + 153087.

It is an arithmetic number, because the mean of its divisors is an integer number (671173419).

Almost surely, 2^2684396837 is an apocalyptic number.

It is an amenable number.

2684396837 is a deficient number, since it is larger than the sum of its proper divisors (296839).

2684396837 is an equidigital number, since it uses as much as digits as its factorization.

2684396837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296838.

The product of its digits is 10450944, while the sum is 56.

The square root of 2684396837 is about 51811.1651770157. The cubic root of 2684396837 is about 1389.7891157394.

The spelling of 2684396837 in words is "two billion, six hundred eighty-four million, three hundred ninety-six thousand, eight hundred thirty-seven".