100023663 has 4 divisors (see below), whose sum is σ = 133364888. Its totient is φ = 66682440.

The previous prime is 100023659. The next prime is 100023673. The reversal of 100023663 is 366320001.

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

It is not a de Polignac number, because 100023663 - 2² = 100023659 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 (100023643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16670608 + ... + 16670613.

It is an arithmetic number, because the mean of its divisors is an integer number (33341222).

Almost surely, 2^100023663 is an apocalyptic number.

100023663 is a deficient number, since it is larger than the sum of its proper divisors (33341225).

100023663 is an equidigital number, since it uses as much as digits as its factorization.

100023663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33341224.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 100023663 is about 10001.1830800161. The cubic root of 100023663 is about 464.1954917794.

Adding to 100023663 its reverse (366320001), we get a palindrome (466343664).

The spelling of 100023663 in words is "one hundred million, twenty-three thousand, six hundred sixty-three".