622931189 has 4 divisors (see below), whose sum is σ = 623332320. Its totient is φ = 622530060.

The previous prime is 622931171. The next prime is 622931201. The reversal of 622931189 is 981139226.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 981139226 = 2 ⋅490569613.

It is a cyclic number.

It is not a de Polignac number, because 622931189 - 2¹² = 622927093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622931129) 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, 198227 + ... + 201344.

It is an arithmetic number, because the mean of its divisors is an integer number (155833080).

Almost surely, 2^622931189 is an apocalyptic number.

It is an amenable number.

622931189 is a deficient number, since it is larger than the sum of its proper divisors (401131).

622931189 is a wasteful number, since it uses less digits than its factorization.

622931189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401130.

The product of its digits is 46656, while the sum is 41.

The square root of 622931189 is about 24958.5894833823. The cubic root of 622931189 is about 854.0435659976.

The spelling of 622931189 in words is "six hundred twenty-two million, nine hundred thirty-one thousand, one hundred eighty-nine".