2215923 has 8 divisors (see below), whose sum is σ = 2972928. Its totient is φ = 1468104.

The previous prime is 2215921. The next prime is 2215931. The reversal of 2215923 is 3295122.

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

It is not a de Polignac number, because 2215923 - 2¹ = 2215921 is a prime.

2215923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2215893 and 2215902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215921) 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, 1711 + ... + 2712.

It is an arithmetic number, because the mean of its divisors is an integer number (371616).

2^2215923 is an apocalyptic number.

2215923 is a deficient number, since it is larger than the sum of its proper divisors (757005).

2215923 is a wasteful number, since it uses less digits than its factorization.

2215923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593.

The product of its digits is 1080, while the sum is 24.

The square root of 2215923 is about 1488.5976622311. The cubic root of 2215923 is about 130.3721682419.

The spelling of 2215923 in words is "two million, two hundred fifteen thousand, nine hundred twenty-three".