104644263 has 4 divisors (see below), whose sum is σ = 139525688. Its totient is φ = 69762840.

The previous prime is 104644249. The next prime is 104644357. The reversal of 104644263 is 362446401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362446401 = 3 ⋅120815467.

It is not a de Polignac number, because 104644263 - 2²⁴ = 87867047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104644263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104644213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17440708 + ... + 17440713.

It is an arithmetic number, because the mean of its divisors is an integer number (34881422).

Almost surely, 2^104644263 is an apocalyptic number.

104644263 is a deficient number, since it is larger than the sum of its proper divisors (34881425).

104644263 is an equidigital number, since it uses as much as digits as its factorization.

104644263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34881424.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 104644263 is about 10229.5778505274. The cubic root of 104644263 is about 471.2360148012.

The spelling of 104644263 in words is "one hundred four million, six hundred forty-four thousand, two hundred sixty-three".