3999223622 has 8 divisors (see below), whose sum is σ = 5999104200. Its totient is φ = 1999522224.

The previous prime is 3999223621. The next prime is 3999223639. The reversal of 3999223622 is 2263229993.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999223621) 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, 60629 + ... + 108047.

It is an arithmetic number, because the mean of its divisors is an integer number (749888025).

Almost surely, 2^3999223622 is an apocalyptic number.

3999223622 is a deficient number, since it is larger than the sum of its proper divisors (1999880578).

3999223622 is a wasteful number, since it uses less digits than its factorization.

3999223622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89590.

The product of its digits is 629856, while the sum is 47.

The square root of 3999223622 is about 63239.4150984969. The cubic root of 3999223622 is about 1587.2983433850.

The spelling of 3999223622 in words is "three billion, nine hundred ninety-nine million, two hundred twenty-three thousand, six hundred twenty-two".