8934421 has 2 divisors, whose sum is σ = 8934422. Its totient is φ = 8934420.

The previous prime is 8934413. The next prime is 8934439. The reversal of 8934421 is 1244398.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8916196 + 18225 = 2986^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 8934421 - 2³ = 8934413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8934451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4467210 + 4467211.

It is an arithmetic number, because the mean of its divisors is an integer number (4467211).

Almost surely, 2^8934421 is an apocalyptic number.

It is an amenable number.

8934421 is a deficient number, since it is larger than the sum of its proper divisors (1).

8934421 is an equidigital number, since it uses as much as digits as its factorization.

8934421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 8934421 is about 2989.0501835868. The cubic root of 8934421 is about 207.5019286606.

The spelling of 8934421 in words is "eight million, nine hundred thirty-four thousand, four hundred twenty-one".