93213893 has 2 divisors, whose sum is σ = 93213894. Its totient is φ = 93213892.

The previous prime is 93213881. The next prime is 93213947. The reversal of 93213893 is 39831239.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53246209 + 39967684 = 7297^2 + 6322^2 .

It is a cyclic number.

It is not a de Polignac number, because 93213893 - 2¹⁴ = 93197509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93213823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46606946 + 46606947.

It is an arithmetic number, because the mean of its divisors is an integer number (46606947).

Almost surely, 2^93213893 is an apocalyptic number.

It is an amenable number.

93213893 is a deficient number, since it is larger than the sum of its proper divisors (1).

93213893 is an equidigital number, since it uses as much as digits as its factorization.

93213893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 93213893 is about 9654.7342273105. The cubic root of 93213893 is about 453.4125625051.

The spelling of 93213893 in words is "ninety-three million, two hundred thirteen thousand, eight hundred ninety-three".