662923 has 4 divisors (see below), whose sum is σ = 664888. Its totient is φ = 660960.

The previous prime is 662917. The next prime is 662939. The reversal of 662923 is 329266.

662923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-662923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 662891 and 662900.

It is not an unprimeable number, because it can be changed into a prime (662953) 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, 333 + ... + 1198.

It is an arithmetic number, because the mean of its divisors is an integer number (166222).

2⁶⁶²⁹²³ is an apocalyptic number.

662923 is a deficient number, since it is larger than the sum of its proper divisors (1965).

662923 is a wasteful number, since it uses less digits than its factorization.

662923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964.

The product of its digits is 3888, while the sum is 28.

The square root of 662923 is about 814.2008351752. The cubic root of 662923 is about 87.1942197302.

The spelling of 662923 in words is "six hundred sixty-two thousand, nine hundred twenty-three".