104840993 has 4 divisors (see below), whose sum is σ = 110358960. Its totient is φ = 99323028.

The previous prime is 104840971. The next prime is 104840999. The reversal of 104840993 is 399048401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104840993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104840999) 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, 2758955 + ... + 2758992.

It is an arithmetic number, because the mean of its divisors is an integer number (27589740).

Almost surely, 2^104840993 is an apocalyptic number.

It is an amenable number.

104840993 is a deficient number, since it is larger than the sum of its proper divisors (5517967).

104840993 is an equidigital number, since it uses as much as digits as its factorization.

104840993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5517966.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 104840993 is about 10239.1890792191. The cubic root of 104840993 is about 471.5311360165.

The spelling of 104840993 in words is "one hundred four million, eight hundred forty thousand, nine hundred ninety-three".