93043421 has 2 divisors, whose sum is σ = 93043422. Its totient is φ = 93043420.

The previous prime is 93043393. The next prime is 93043439. The reversal of 93043421 is 12434039.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61795321 + 31248100 = 7861^2 + 5590^2 .

It is an emirp because it is prime and its reverse (12434039) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 93043421 - 2¹⁴ = 93027037 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93043451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46521710 + 46521711.

It is an arithmetic number, because the mean of its divisors is an integer number (46521711).

Almost surely, 2^93043421 is an apocalyptic number.

It is an amenable number.

93043421 is a deficient number, since it is larger than the sum of its proper divisors (1).

93043421 is an equidigital number, since it uses as much as digits as its factorization.

93043421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 93043421 is about 9645.9017722554. The cubic root of 93043421 is about 453.1359895932.

The spelling of 93043421 in words is "ninety-three million, forty-three thousand, four hundred twenty-one".