1622423 has 8 divisors (see below), whose sum is σ = 1793280. Its totient is φ = 1455480.

The previous prime is 1622419. The next prime is 1622431. The reversal of 1622423 is 3242261.

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

It is a cyclic number.

It is not a de Polignac number, because 1622423 - 2² = 1622419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1622395 and 1622404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65 + ... + 1802.

It is an arithmetic number, because the mean of its divisors is an integer number (224160).

2^1622423 is an apocalyptic number.

1622423 is a deficient number, since it is larger than the sum of its proper divisors (170857).

1622423 is a wasteful number, since it uses less digits than its factorization.

1622423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957.

The product of its digits is 576, while the sum is 20.

The square root of 1622423 is about 1273.7436947832. The cubic root of 1622423 is about 117.5045539204.

Adding to 1622423 its reverse (3242261), we get a palindrome (4864684).

The spelling of 1622423 in words is "one million, six hundred twenty-two thousand, four hundred twenty-three".