2102923 has 4 divisors (see below), whose sum is σ = 2106328. Its totient is φ = 2099520.

The previous prime is 2102897. The next prime is 2102927. The reversal of 2102923 is 3292012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2102923 - 2⁹ = 2102411 is a prime.

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 2102923.

It is not an unprimeable number, because it can be changed into a prime (2102927) 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, 486 + ... + 2107.

It is an arithmetic number, because the mean of its divisors is an integer number (526582).

2^2102923 is an apocalyptic number.

2102923 is a deficient number, since it is larger than the sum of its proper divisors (3405).

2102923 is an equidigital number, since it uses as much as digits as its factorization.

2102923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2102923 is about 1450.1458547332. The cubic root of 2102923 is about 128.1173037614.

Adding to 2102923 its reverse (3292012), we get a palindrome (5394935).

It can be divided in two parts, 2102 and 923, that added together give a square (3025 = 55²).

The spelling of 2102923 in words is "two million, one hundred two thousand, nine hundred twenty-three".