622641671 has 8 divisors (see below), whose sum is σ = 658865664. Its totient is φ = 587180440.

The previous prime is 622641641. The next prime is 622641683. The reversal of 622641671 is 176146226.

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

It is a cyclic number.

It is not a de Polignac number, because 622641671 - 2¹⁴ = 622625287 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 (622641641) 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, 189011 + ... + 192276.

It is an arithmetic number, because the mean of its divisors is an integer number (82358208).

Almost surely, 2^622641671 is an apocalyptic number.

622641671 is a deficient number, since it is larger than the sum of its proper divisors (36223993).

622641671 is a wasteful number, since it uses less digits than its factorization.

622641671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381381.

The product of its digits is 24192, while the sum is 35.

The square root of 622641671 is about 24952.7888421315. The cubic root of 622641671 is about 853.9112350084.

Adding to 622641671 its reverse (176146226), we get a palindrome (798787897).

The spelling of 622641671 in words is "six hundred twenty-two million, six hundred forty-one thousand, six hundred seventy-one".