104288421 has 32 divisors (see below), whose sum is σ = 151538688. Its totient is φ = 63553280.

The previous prime is 104288389. The next prime is 104288447. The reversal of 104288421 is 124882401.

It is a cyclic number.

It is not a de Polignac number, because 104288421 - 2⁵ = 104288389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104288521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300370 + ... + 300716.

It is an arithmetic number, because the mean of its divisors is an integer number (4735584).

Almost surely, 2^104288421 is an apocalyptic number.

It is an amenable number.

104288421 is a deficient number, since it is larger than the sum of its proper divisors (47250267).

104288421 is a wasteful number, since it uses less digits than its factorization.

104288421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 104288421 is about 10212.1702394741. The cubic root of 104288421 is about 470.7012634057.

The spelling of 104288421 in words is "one hundred four million, two hundred eighty-eight thousand, four hundred twenty-one".