2106586 has 4 divisors (see below), whose sum is σ = 3159882. Its totient is φ = 1053292.

The previous prime is 2106563. The next prime is 2106617. The reversal of 2106586 is 6856012.

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

It can be written as a sum of positive squares in only one way, i.e., 2013561 + 93025 = 1419^2 + 305^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526645 + ... + 526648.

2^2106586 is an apocalyptic number.

2106586 is a deficient number, since it is larger than the sum of its proper divisors (1053296).

2106586 is a wasteful number, since it uses less digits than its factorization.

2106586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053295.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2106586 is about 1451.4082816355. The cubic root of 2106586 is about 128.1916481328.

The spelling of 2106586 in words is "two million, one hundred six thousand, five hundred eighty-six".