622772219 has 4 divisors (see below), whose sum is σ = 649849296. Its totient is φ = 595695144.

The previous prime is 622772201. The next prime is 622772221. The reversal of 622772219 is 912277226.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 622772219 - 2²⁴ = 605995003 is a prime.

It is a super-2 number, since 2×622772219² = 775690473516367922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (622772239) 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, 13538504 + ... + 13538549.

It is an arithmetic number, because the mean of its divisors is an integer number (162462324).

Almost surely, 2^622772219 is an apocalyptic number.

622772219 is a deficient number, since it is larger than the sum of its proper divisors (27077077).

622772219 is a wasteful number, since it uses less digits than its factorization.

622772219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27077076.

The product of its digits is 42336, while the sum is 38.

The square root of 622772219 is about 24955.4046050149. The cubic root of 622772219 is about 853.9709101094.

The spelling of 622772219 in words is "six hundred twenty-two million, seven hundred seventy-two thousand, two hundred nineteen".