2106923 has 16 divisors (see below), whose sum is σ = 2627520. Its totient is φ = 1654848.

The previous prime is 2106919. The next prime is 2106931. The reversal of 2106923 is 3296012.

It is not a de Polignac number, because 2106923 - 2² = 2106919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2106943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15311 + ... + 15447.

It is an arithmetic number, because the mean of its divisors is an integer number (164220).

2^2106923 is an apocalyptic number.

2106923 is a deficient number, since it is larger than the sum of its proper divisors (520597).

2106923 is an equidigital number, since it uses as much as digits as its factorization.

2106923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2106923 is about 1451.5243711354. The cubic root of 2106923 is about 128.1984835657.

The spelling of 2106923 in words is "two million, one hundred six thousand, nine hundred twenty-three".