2861359 has 4 divisors (see below), whose sum is σ = 2887720. Its totient is φ = 2835000.

The previous prime is 2861347. The next prime is 2861363. The reversal of 2861359 is 9531682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9531682 = 2 ⋅4765841.

It is a cyclic number.

It is not a de Polignac number, because 2861359 - 2⁷ = 2861231 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 (2861399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13017 + ... + 13234.

It is an arithmetic number, because the mean of its divisors is an integer number (721930).

2^2861359 is an apocalyptic number.

2861359 is a deficient number, since it is larger than the sum of its proper divisors (26361).

2861359 is a wasteful number, since it uses less digits than its factorization.

2861359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26360.

The product of its digits is 12960, while the sum is 34.

The square root of 2861359 is about 1691.5552015823. Note that the first 3 decimals coincide. The cubic root of 2861359 is about 141.9681043220.

The spelling of 2861359 in words is "two million, eight hundred sixty-one thousand, three hundred fifty-nine".