2681859 has 8 divisors (see below), whose sum is σ = 3604480. Its totient is φ = 1773576.

The previous prime is 2681857. The next prime is 2681863. The reversal of 2681859 is 9581862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2681859 - 2¹ = 2681857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2681857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3139 + ... + 3900.

It is an arithmetic number, because the mean of its divisors is an integer number (450560).

2^2681859 is an apocalyptic number.

2681859 is a deficient number, since it is larger than the sum of its proper divisors (922621).

2681859 is a wasteful number, since it uses less digits than its factorization.

2681859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169.

The product of its digits is 34560, while the sum is 39.

The square root of 2681859 is about 1637.6382384397. The cubic root of 2681859 is about 138.9351007350.

The spelling of 2681859 in words is "two million, six hundred eighty-one thousand, eight hundred fifty-nine".