662023 has 4 divisors (see below), whose sum is σ = 674568. Its totient is φ = 649480.

The previous prime is 662021. The next prime is 662029. The reversal of 662023 is 320266.

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 662023 - 2¹ = 662021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662021) 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, 6193 + ... + 6298.

It is an arithmetic number, because the mean of its divisors is an integer number (168642).

2⁶⁶²⁰²³ is an apocalyptic number.

662023 is a deficient number, since it is larger than the sum of its proper divisors (12545).

662023 is a wasteful number, since it uses less digits than its factorization.

662023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12544.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 662023 is about 813.6479582719. The cubic root of 662023 is about 87.1547428791.

Adding to 662023 its reverse (320266), we get a palindrome (982289).

The spelling of 662023 in words is "six hundred sixty-two thousand, twenty-three".