1022663 has 4 divisors (see below), whose sum is σ = 1047648. Its totient is φ = 997680.

The previous prime is 1022653. The next prime is 1022677. The reversal of 1022663 is 3662201.

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 1022663 - 2¹⁴ = 1006279 is a prime.

It is a super-2 number, since 2×1022663² = 2091679223138, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12431 + ... + 12512.

It is an arithmetic number, because the mean of its divisors is an integer number (261912).

2^1022663 is an apocalyptic number.

1022663 is a deficient number, since it is larger than the sum of its proper divisors (24985).

1022663 is an equidigital number, since it uses as much as digits as its factorization.

1022663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24984.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1022663 is about 1011.2680159087. The cubic root of 1022663 is about 100.7497973220.

Adding to 1022663 its reverse (3662201), we get a palindrome (4684864).

The spelling of 1022663 in words is "one million, twenty-two thousand, six hundred sixty-three".