104398021 has 8 divisors (see below), whose sum is σ = 128489984. Its totient is φ = 82600560.

The previous prime is 104398009. The next prime is 104398031. The reversal of 104398021 is 120893401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 104398021 - 2⁹ = 104397509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104398031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573525 + ... + 573706.

It is an arithmetic number, because the mean of its divisors is an integer number (16061248).

Almost surely, 2^104398021 is an apocalyptic number.

It is an amenable number.

104398021 is a deficient number, since it is larger than the sum of its proper divisors (24091963).

104398021 is a wasteful number, since it uses less digits than its factorization.

104398021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147251.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 104398021 is about 10217.5349766957. The cubic root of 104398021 is about 470.8660972910.

The spelling of 104398021 in words is "one hundred four million, three hundred ninety-eight thousand, twenty-one".