104020665 has 16 divisors (see below), whose sum is σ = 190209408. Its totient is φ = 47552256.

The previous prime is 104020613. The next prime is 104020667. The reversal of 104020665 is 566020401.

It is not a de Polignac number, because 104020665 - 2⁸ = 104020409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104020667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495232 + ... + 495441.

It is an arithmetic number, because the mean of its divisors is an integer number (11888088).

Almost surely, 2^104020665 is an apocalyptic number.

104020665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104020665 is a deficient number, since it is larger than the sum of its proper divisors (86188743).

104020665 is an equidigital number, since it uses as much as digits as its factorization.

104020665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990688.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 104020665 is about 10199.0521618433. The cubic root of 104020665 is about 470.2980831296.

The spelling of 104020665 in words is "one hundred four million, twenty thousand, six hundred sixty-five".