2108973 has 4 divisors (see below), whose sum is σ = 2811968. Its totient is φ = 1405980.

The previous prime is 2108957. The next prime is 2108983. The reversal of 2108973 is 3798012.

It is a happy number.

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 not a de Polignac number, because 2108973 - 2⁴ = 2108957 is a prime.

It is a super-2 number, since 2×2108973² = 8895534229458, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2108973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108983) 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, 351493 + ... + 351498.

It is an arithmetic number, because the mean of its divisors is an integer number (702992).

2^2108973 is an apocalyptic number.

It is an amenable number.

2108973 is a deficient number, since it is larger than the sum of its proper divisors (702995).

2108973 is an equidigital number, since it uses as much as digits as its factorization.

2108973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702994.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 2108973 is about 1452.2303536285. The cubic root of 2108973 is about 128.2400483977.

It can be divided in two parts, 2108 and 973, that added together give a triangular number (3081 = T₇₈).

The spelling of 2108973 in words is "two million, one hundred eight thousand, nine hundred seventy-three".