6622471 has 4 divisors (see below), whose sum is σ = 6630192. Its totient is φ = 6614752.

The previous prime is 6622457. The next prime is 6622489. The reversal of 6622471 is 1742266.

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 6622471 - 2¹¹ = 6620423 is a prime.

It is a super-3 number, since 3×6622471³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

6622471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6629471) 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, 2386 + ... + 4351.

It is an arithmetic number, because the mean of its divisors is an integer number (1657548).

Almost surely, 2^6622471 is an apocalyptic number.

6622471 is a deficient number, since it is larger than the sum of its proper divisors (7721).

6622471 is an equidigital number, since it uses as much as digits as its factorization.

6622471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7720.

The product of its digits is 4032, while the sum is 28.

The square root of 6622471 is about 2573.4162119642. The cubic root of 6622471 is about 187.7903861872.

The spelling of 6622471 in words is "six million, six hundred twenty-two thousand, four hundred seventy-one".