104193643 has 4 divisors (see below), whose sum is σ = 105748840. Its totient is φ = 102638448.

The previous prime is 104193641. The next prime is 104193659. The reversal of 104193643 is 346391401.

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

It is a cyclic number.

It is not a de Polignac number, because 104193643 - 2¹ = 104193641 is a prime.

It is a super-2 number, since 2×104193643² = 21712630483222898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104193641) 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, 777498 + ... + 777631.

It is an arithmetic number, because the mean of its divisors is an integer number (26437210).

Almost surely, 2^104193643 is an apocalyptic number.

104193643 is a deficient number, since it is larger than the sum of its proper divisors (1555197).

104193643 is an equidigital number, since it uses as much as digits as its factorization.

104193643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555196.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 104193643 is about 10207.5287410813. The cubic root of 104193643 is about 470.5586280573.

The spelling of 104193643 in words is "one hundred four million, one hundred ninety-three thousand, six hundred forty-three".