104320641 has 4 divisors (see below), whose sum is σ = 139094192. Its totient is φ = 69547092.

The previous prime is 104320639. The next prime is 104320651. The reversal of 104320641 is 146023401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 146023401 = 3 ⋅48674467.

It is not a de Polignac number, because 104320641 - 2¹ = 104320639 is a prime.

It is a super-2 number, since 2×104320641² = 21765592277301762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104320651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17386771 + ... + 17386776.

It is an arithmetic number, because the mean of its divisors is an integer number (34773548).

Almost surely, 2^104320641 is an apocalyptic number.

It is an amenable number.

104320641 is a deficient number, since it is larger than the sum of its proper divisors (34773551).

104320641 is an equidigital number, since it uses as much as digits as its factorization.

104320641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34773550.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 104320641 is about 10213.7476471665. The cubic root of 104320641 is about 470.7497329384.

The spelling of 104320641 in words is "one hundred four million, three hundred twenty thousand, six hundred forty-one".