1622023 has 4 divisors (see below), whose sum is σ = 1746808. Its totient is φ = 1497240.

The previous prime is 1622009. The next prime is 1622039. The reversal of 1622023 is 3202261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3202261 = 97 ⋅33013.

It is a cyclic number.

It is not a de Polignac number, because 1622023 - 2¹³ = 1613831 is a prime.

It is a super-2 number, since 2×1622023² = 5261917225058, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 6.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1621988 and 1622006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62373 + ... + 62398.

It is an arithmetic number, because the mean of its divisors is an integer number (436702).

2^1622023 is an apocalyptic number.

1622023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1622023 is a deficient number, since it is larger than the sum of its proper divisors (124785).

1622023 is a wasteful number, since it uses less digits than its factorization.

1622023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124784.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1622023 is about 1273.5866676438. The cubic root of 1622023 is about 117.4948964133.

Adding to 1622023 its reverse (3202261), we get a palindrome (4824284).

The spelling of 1622023 in words is "one million, six hundred twenty-two thousand, twenty-three".