2120873 has 8 divisors (see below), whose sum is σ = 2184000. Its totient is φ = 2058768.

The previous prime is 2120863. The next prime is 2120879. The reversal of 2120873 is 3780212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120873 - 2¹⁶ = 2055337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5903 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (273000).

2^2120873 is an apocalyptic number.

It is an amenable number.

2120873 is a deficient number, since it is larger than the sum of its proper divisors (63127).

2120873 is a wasteful number, since it uses less digits than its factorization.

2120873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2120873 is about 1456.3217364305. The cubic root of 2120873 is about 128.4807967387.

The spelling of 2120873 in words is "two million, one hundred twenty thousand, eight hundred seventy-three".