2115973 has 8 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 1886400.

The previous prime is 2115961. The next prime is 2115979. The reversal of 2115973 is 3795112.

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 2115973 - 2⁹ = 2115461 is a prime.

It is a Duffinian number.

2115973 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2953 + ... + 3598.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

2^2115973 is an apocalyptic number.

It is an amenable number.

2115973 is a deficient number, since it is larger than the sum of its proper divisors (242747).

2115973 is a wasteful number, since it uses less digits than its factorization.

2115973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6587.

The product of its digits is 1890, while the sum is 28.

The square root of 2115973 is about 1454.6384430504. The cubic root of 2115973 is about 128.3817744080.

It can be divided in two parts, 211597 and 3, that added together give a square (211600 = 460²).

The spelling of 2115973 in words is "two million, one hundred fifteen thousand, nine hundred seventy-three".