2147923 has 2 divisors, whose sum is σ = 2147924. Its totient is φ = 2147922.

The previous prime is 2147911. The next prime is 2147941. The reversal of 2147923 is 3297412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2147923 - 2¹⁷ = 2016851 is a prime.

It is a super-2 number, since 2×2147923² = 9227146427858, which contains 22 as substring.

2147923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2147891 and 2147900.

It is not a weakly prime, because it can be changed into another prime (2147903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073961 + 1073962.

It is an arithmetic number, because the mean of its divisors is an integer number (1073962).

2^2147923 is an apocalyptic number.

2147923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147923 is an equidigital number, since it uses as much as digits as its factorization.

2147923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 2147923 is about 1465.5794076064. The cubic root of 2147923 is about 129.0247133310.

The spelling of 2147923 in words is "two million, one hundred forty-seven thousand, nine hundred twenty-three".