2106343873 has 2 divisors, whose sum is σ = 2106343874. Its totient is φ = 2106343872.

The previous prime is 2106343859. The next prime is 2106343909. The reversal of 2106343873 is 3783436012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1868659984 + 237683889 = 43228^2 + 15417^2 .

It is a cyclic number.

It is not a de Polignac number, because 2106343873 - 2⁹ = 2106343361 is a prime.

It is a super-2 number, since 2×2106343873² = 8873369022649280258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2106343823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053171936 + 1053171937.

It is an arithmetic number, because the mean of its divisors is an integer number (1053171937).

Almost surely, 2^2106343873 is an apocalyptic number.

It is an amenable number.

2106343873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106343873 is an equidigital number, since it uses as much as digits as its factorization.

2106343873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 2106343873 is about 45894.9220829494. The cubic root of 2106343873 is about 1281.8673657629.

Adding to 2106343873 its reverse (3783436012), we get a palindrome (5889779885).

The spelling of 2106343873 in words is "two billion, one hundred six million, three hundred forty-three thousand, eight hundred seventy-three".