100623 has 8 divisors (see below), whose sum is σ = 142128. Its totient is φ = 63104.

The previous prime is 100621. The next prime is 100649. The reversal of 100623 is 326001.

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

It is not a de Polignac number, because 100623 - 2¹ = 100621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100599 and 100608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936 + ... + 1037.

It is an arithmetic number, because the mean of its divisors is an integer number (17766).

2¹⁰⁰⁶²³ is an apocalyptic number.

100623 is a deficient number, since it is larger than the sum of its proper divisors (41505).

100623 is a wasteful number, since it uses less digits than its factorization.

100623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100623 is about 317.2112860539. The cubic root of 100623 is about 46.5120791836.

Adding to 100623 its reverse (326001), we get a palindrome (426624).

The spelling of 100623 in words is "one hundred thousand, six hundred twenty-three".