93223421 has 2 divisors, whose sum is σ = 93223422. Its totient is φ = 93223420.

The previous prime is 93223411. The next prime is 93223423. The reversal of 93223421 is 12432239.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84732025 + 8491396 = 9205^2 + 2914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93223421 is a prime.

Together with 93223423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93223423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46611710 + 46611711.

It is an arithmetic number, because the mean of its divisors is an integer number (46611711).

Almost surely, 2^93223421 is an apocalyptic number.

It is an amenable number.

93223421 is a deficient number, since it is larger than the sum of its proper divisors (1).

93223421 is an equidigital number, since it uses as much as digits as its factorization.

93223421 is an evil number, because the sum of its binary digits is even.

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

The square root of 93223421 is about 9655.2276513814. The cubic root of 93223421 is about 453.4280107306.

The spelling of 93223421 in words is "ninety-three million, two hundred twenty-three thousand, four hundred twenty-one".