93287213 has 2 divisors, whose sum is σ = 93287214. Its totient is φ = 93287212.

The previous prime is 93287191. The next prime is 93287221. The reversal of 93287213 is 31278239.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71961289 + 21325924 = 8483^2 + 4618^2 .

It is an emirp because it is prime and its reverse (31278239) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 93287213 - 2¹² = 93283117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93289213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46643606 + 46643607.

It is an arithmetic number, because the mean of its divisors is an integer number (46643607).

Almost surely, 2^93287213 is an apocalyptic number.

It is an amenable number.

93287213 is a deficient number, since it is larger than the sum of its proper divisors (1).

93287213 is an equidigital number, since it uses as much as digits as its factorization.

93287213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 93287213 is about 9658.5305818225. The cubic root of 93287213 is about 453.5314128018.

The spelling of 93287213 in words is "ninety-three million, two hundred eighty-seven thousand, two hundred thirteen".