2106493 has 4 divisors (see below), whose sum is σ = 2151360. Its totient is φ = 2061628.

The previous prime is 2106491. The next prime is 2106523. The reversal of 2106493 is 3946012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2106493 - 2¹ = 2106491 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106491) 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, 22363 + ... + 22456.

It is an arithmetic number, because the mean of its divisors is an integer number (537840).

2^2106493 is an apocalyptic number.

It is an amenable number.

2106493 is a deficient number, since it is larger than the sum of its proper divisors (44867).

2106493 is an equidigital number, since it uses as much as digits as its factorization.

2106493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44866.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2106493 is about 1451.3762434324. The cubic root of 2106493 is about 128.1897616683.

The spelling of 2106493 in words is "two million, one hundred six thousand, four hundred ninety-three".