1622606 has 8 divisors (see below), whose sum is σ = 2470440. Its totient is φ = 799128.

The previous prime is 1622597. The next prime is 1622609. The reversal of 1622606 is 6062261.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622609) 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, 5921 + ... + 6188.

It is an arithmetic number, because the mean of its divisors is an integer number (308805).

2^1622606 is an apocalyptic number.

1622606 is a deficient number, since it is larger than the sum of its proper divisors (847834).

1622606 is a wasteful number, since it uses less digits than its factorization.

1622606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12178.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1622606 is about 1273.8155282458. The cubic root of 1622606 is about 117.5089717006.

Adding to 1622606 its reverse (6062261), we get a palindrome (7684867).

It can be divided in two parts, 16 and 22606, that added together give a palindrome (22622).

The spelling of 1622606 in words is "one million, six hundred twenty-two thousand, six hundred six".