6619622 has 4 divisors (see below), whose sum is σ = 9929436. Its totient is φ = 3309810.

The previous prime is 6619609. The next prime is 6619643. The reversal of 6619622 is 2269166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2269166 = 2 ⋅1134583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1654904 + ... + 1654907.

It is an arithmetic number, because the mean of its divisors is an integer number (2482359).

Almost surely, 2^6619622 is an apocalyptic number.

6619622 is a deficient number, since it is larger than the sum of its proper divisors (3309814).

6619622 is a wasteful number, since it uses less digits than its factorization.

6619622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309813.

The product of its digits is 7776, while the sum is 32.

The square root of 6619622 is about 2572.8626080691. The cubic root of 6619622 is about 187.7634530606.

The spelling of 6619622 in words is "six million, six hundred nineteen thousand, six hundred twenty-two".