93968891 has 2 divisors, whose sum is σ = 93968892. Its totient is φ = 93968890.

The previous prime is 93968821. The next prime is 93968893. The reversal of 93968891 is 19886939.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 93968891 - 2¹⁸ = 93706747 is a prime.

Together with 93968893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (93968893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46984445 + 46984446.

It is an arithmetic number, because the mean of its divisors is an integer number (46984446).

Almost surely, 2^93968891 is an apocalyptic number.

93968891 is a deficient number, since it is larger than the sum of its proper divisors (1).

93968891 is an equidigital number, since it uses as much as digits as its factorization.

93968891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 53.

The square root of 93968891 is about 9693.7552578967. The cubic root of 93968891 is about 454.6334301485.

The spelling of 93968891 in words is "ninety-three million, nine hundred sixty-eight thousand, eight hundred ninety-one".