93381091 has 2 divisors, whose sum is σ = 93381092. Its totient is φ = 93381090.

The previous prime is 93381037. The next prime is 93381097. The reversal of 93381091 is 19018339.

It is a strong prime.

It is an emirp because it is prime and its reverse (19018339) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 93381091 - 2¹⁵ = 93348323 is a prime.

It is not a weakly prime, because it can be changed into another prime (93381097) 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, 46690545 + 46690546.

It is an arithmetic number, because the mean of its divisors is an integer number (46690546).

Almost surely, 2^93381091 is an apocalyptic number.

93381091 is a deficient number, since it is larger than the sum of its proper divisors (1).

93381091 is an equidigital number, since it uses as much as digits as its factorization.

93381091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 93381091 is about 9663.3892087611. The cubic root of 93381091 is about 453.6834963385.

The spelling of 93381091 in words is "ninety-three million, three hundred eighty-one thousand, ninety-one".