622471 has 4 divisors (see below), whose sum is σ = 631072. Its totient is φ = 613872.

The previous prime is 622423. The next prime is 622477. The reversal of 622471 is 174226.

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 622471 - 2¹³ = 614279 is a prime.

It is a super-3 number, since 3×622471³ = 723566787455379333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4191 + ... + 4336.

It is an arithmetic number, because the mean of its divisors is an integer number (157768).

2⁶²²⁴⁷¹ is an apocalyptic number.

622471 is a deficient number, since it is larger than the sum of its proper divisors (8601).

622471 is an equidigital number, since it uses as much as digits as its factorization.

622471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600.

The product of its digits is 672, while the sum is 22.

The square root of 622471 is about 788.9683136857. The cubic root of 622471 is about 85.3833206607.

Adding to 622471 its reverse (174226), we get a palindrome (796697).

The spelling of 622471 in words is "six hundred twenty-two thousand, four hundred seventy-one".