1622963 has 4 divisors (see below), whose sum is σ = 1625640. Its totient is φ = 1620288.

The previous prime is 1622953. The next prime is 1622977. The reversal of 1622963 is 3692261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1622963 - 2⁴ = 1622947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622953) 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 in 3 ways as a sum of consecutive naturals, for example, 56 + ... + 1802.

It is an arithmetic number, because the mean of its divisors is an integer number (406410).

2^1622963 is an apocalyptic number.

1622963 is a deficient number, since it is larger than the sum of its proper divisors (2677).

1622963 is an equidigital number, since it uses as much as digits as its factorization.

1622963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676.

The product of its digits is 3888, while the sum is 29.

The square root of 1622963 is about 1273.9556507194. The cubic root of 1622963 is about 117.5175890373.

It can be divided in two parts, 162 and 2963, that added together give a 5-th power (3125 = 5⁵).

The spelling of 1622963 in words is "one million, six hundred twenty-two thousand, nine hundred sixty-three".