104221917 has 32 divisors (see below), whose sum is σ = 165974400. Its totient is φ = 64399104.

The previous prime is 104221913. The next prime is 104221927. The reversal of 104221917 is 719122401.

It is not a de Polignac number, because 104221917 - 2² = 104221913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104221913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29059 + ... + 32447.

It is an arithmetic number, because the mean of its divisors is an integer number (5186700).

Almost surely, 2^104221917 is an apocalyptic number.

104221917 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

104221917 is a deficient number, since it is larger than the sum of its proper divisors (61752483).

104221917 is a wasteful number, since it uses less digits than its factorization.

With its successor (104221918) it forms an eRAP, since the sums of their prime factors are consecutive (3482 and 3483).

104221917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482 (or 3476 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 104221917 is about 10208.9136052765. The cubic root of 104221917 is about 470.6011878239.

The spelling of 104221917 in words is "one hundred four million, two hundred twenty-one thousand, nine hundred seventeen".