622897289 has 8 divisors (see below), whose sum is σ = 753758208. Its totient is φ = 502505280.

The previous prime is 622897277. The next prime is 622897313. The reversal of 622897289 is 982798226.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622897289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 622897289.

It is not an unprimeable number, because it can be changed into a prime (622897189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2617097 + ... + 2617334.

It is an arithmetic number, because the mean of its divisors is an integer number (94219776).

Almost surely, 2^622897289 is an apocalyptic number.

It is an amenable number.

622897289 is a deficient number, since it is larger than the sum of its proper divisors (130860919).

622897289 is a wasteful number, since it uses less digits than its factorization.

622897289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234455.

The product of its digits is 1741824, while the sum is 53.

The square root of 622897289 is about 24957.9103492260. The cubic root of 622897289 is about 854.0280733275.

The spelling of 622897289 in words is "six hundred twenty-two million, eight hundred ninety-seven thousand, two hundred eighty-nine".