3999223619 has 2 divisors, whose sum is σ = 3999223620. Its totient is φ = 3999223618.

The previous prime is 3999223559. The next prime is 3999223621. The reversal of 3999223619 is 9163229993.

3999223619 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3999223619 - 2⁸ = 3999223363 is a prime.

It is a super-2 number, since 2×3999223619² = 31987579109534914322, which contains 22 as substring.

Together with 3999223621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3999223639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1999611809 + 1999611810.

It is an arithmetic number, because the mean of its divisors is an integer number (1999611810).

Almost surely, 2^3999223619 is an apocalyptic number.

3999223619 is a deficient number, since it is larger than the sum of its proper divisors (1).

3999223619 is an equidigital number, since it uses as much as digits as its factorization.

3999223619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1417176, while the sum is 53.

The square root of 3999223619 is about 63239.4150747775. The cubic root of 3999223619 is about 1587.2983429881.

The spelling of 3999223619 in words is "three billion, nine hundred ninety-nine million, two hundred twenty-three thousand, six hundred nineteen".