6622615 has 16 divisors (see below), whose sum is σ = 8239968. Its totient is φ = 5106816.

The previous prime is 6622601. The next prime is 6622619. The reversal of 6622615 is 5162266.

It is a cyclic number.

It is not a de Polignac number, because 6622615 - 2¹³ = 6614423 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 (6622619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17569 + ... + 17941.

It is an arithmetic number, because the mean of its divisors is an integer number (514998).

Almost surely, 2^6622615 is an apocalyptic number.

6622615 is a deficient number, since it is larger than the sum of its proper divisors (1617353).

6622615 is a wasteful number, since it uses less digits than its factorization.

6622615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

The product of its digits is 4320, while the sum is 28.

The square root of 6622615 is about 2573.4441901856. Note that the first 3 decimals coincide. The cubic root of 6622615 is about 187.7917472915.

It can be divided in two parts, 662261 and 5, that added together give a palindrome (662266).

The spelling of 6622615 in words is "six million, six hundred twenty-two thousand, six hundred fifteen".