1023423 has 4 divisors (see below), whose sum is σ = 1364568. Its totient is φ = 682280.

The previous prime is 1023419. The next prime is 1023461. The reversal of 1023423 is 3243201.

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 1023423 - 2² = 1023419 is a prime.

It is a D-number.

1023423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170568 + ... + 170573.

It is an arithmetic number, because the mean of its divisors is an integer number (341142).

2^1023423 is an apocalyptic number.

1023423 is a deficient number, since it is larger than the sum of its proper divisors (341145).

1023423 is an equidigital number, since it uses as much as digits as its factorization.

1023423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341144.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1023423 is about 1011.6437119856. The cubic root of 1023423 is about 100.7747488084.

Adding to 1023423 its reverse (3243201), we get a palindrome (4266624).

The spelling of 1023423 in words is "one million, twenty-three thousand, four hundred twenty-three".