4023967861 has 2 divisors, whose sum is σ = 4023967862. Its totient is φ = 4023967860.

The previous prime is 4023967841. The next prime is 4023967867. The reversal of 4023967861 is 1687693204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4023491761 + 476100 = 63431^2 + 690^2 .

It is a cyclic number.

It is not a de Polignac number, because 4023967861 - 2⁹ = 4023967349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4023967867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011983930 + 2011983931.

It is an arithmetic number, because the mean of its divisors is an integer number (2011983931).

Almost surely, 2^4023967861 is an apocalyptic number.

It is an amenable number.

4023967861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4023967861 is an equidigital number, since it uses as much as digits as its factorization.

4023967861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 4023967861 is about 63434.7527858350. The cubic root of 4023967861 is about 1590.5652910021.

The spelling of 4023967861 in words is "four billion, twenty-three million, nine hundred sixty-seven thousand, eight hundred sixty-one".