1022723 has 8 divisors (see below), whose sum is σ = 1110816. Its totient is φ = 936000.

The previous prime is 1022719. The next prime is 1022729. The reversal of 1022723 is 3272201.

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

It is not a de Polignac number, because 1022723 - 2² = 1022719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022729) 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 7 ways as a sum of consecutive naturals, for example, 1703 + ... + 2223.

It is an arithmetic number, because the mean of its divisors is an integer number (138852).

2^1022723 is an apocalyptic number.

1022723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1022723 is a deficient number, since it is larger than the sum of its proper divisors (88093).

1022723 is a wasteful number, since it uses less digits than its factorization.

1022723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1022723 is about 1011.2976811998. The cubic root of 1022723 is about 100.7517676255.

Adding to 1022723 its reverse (3272201), we get a palindrome (4294924).

The spelling of 1022723 in words is "one million, twenty-two thousand, seven hundred twenty-three".