1622263 has 2 divisors, whose sum is σ = 1622264. Its totient is φ = 1622262.

The previous prime is 1622233. The next prime is 1622273. The reversal of 1622263 is 3622261.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3622261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1622263 - 2⁹ = 1621751 is a prime.

1622263 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1622233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811131 + 811132.

It is an arithmetic number, because the mean of its divisors is an integer number (811132).

2^1622263 is an apocalyptic number.

1622263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622263 is an equidigital number, since it uses as much as digits as its factorization.

1622263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 1622263 is about 1273.6808862506. The cubic root of 1622263 is about 117.5006911081.

The spelling of 1622263 in words is "one million, six hundred twenty-two thousand, two hundred sixty-three".