2086539 has 16 divisors (see below), whose sum is σ = 3424512. Its totient is φ = 1100448.

The previous prime is 2086519. The next prime is 2086543. The reversal of 2086539 is 9356802.

It is a happy number.

It is not a de Polignac number, because 2086539 - 2⁵ = 2086507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2086519) 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, 3549 + ... + 4094.

It is an arithmetic number, because the mean of its divisors is an integer number (214032).

2^2086539 is an apocalyptic number.

2086539 is a deficient number, since it is larger than the sum of its proper divisors (1337973).

2086539 is a wasteful number, since it uses less digits than its factorization.

2086539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2086539 is about 1444.4857216324. The cubic root of 2086539 is about 127.7837126978.

The spelling of 2086539 in words is "two million, eighty-six thousand, five hundred thirty-nine".