104726921 has 4 divisors (see below), whose sum is σ = 112782852. Its totient is φ = 96670992.

The previous prime is 104726899. The next prime is 104726927. The reversal of 104726921 is 129627401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20748025 + 83978896 = 4555^2 + 9164^2 .

It is a cyclic number.

It is not a de Polignac number, because 104726921 - 2²² = 100532617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104726927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4027946 + ... + 4027971.

It is an arithmetic number, because the mean of its divisors is an integer number (28195713).

Almost surely, 2^104726921 is an apocalyptic number.

It is an amenable number.

104726921 is a deficient number, since it is larger than the sum of its proper divisors (8055931).

104726921 is an equidigital number, since it uses as much as digits as its factorization.

104726921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8055930.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 104726921 is about 10233.6172001888. The cubic root of 104726921 is about 471.3600578337.

The spelling of 104726921 in words is "one hundred four million, seven hundred twenty-six thousand, nine hundred twenty-one".