93390917 has 2 divisors, whose sum is σ = 93390918. Its totient is φ = 93390916.

The previous prime is 93390889. The next prime is 93390919. The reversal of 93390917 is 71909339.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72148036 + 21242881 = 8494^2 + 4609^2 .

It is a cyclic number.

It is not a de Polignac number, because 93390917 - 2¹⁶ = 93325381 is a prime.

Together with 93390919, 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 (93390919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46695458 + 46695459.

It is an arithmetic number, because the mean of its divisors is an integer number (46695459).

Almost surely, 2^93390917 is an apocalyptic number.

It is an amenable number.

93390917 is a deficient number, since it is larger than the sum of its proper divisors (1).

93390917 is an equidigital number, since it uses as much as digits as its factorization.

93390917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 93390917 is about 9663.8976091430. The cubic root of 93390917 is about 453.6994086881.

The spelling of 93390917 in words is "ninety-three million, three hundred ninety thousand, nine hundred seventeen".