93138217 has 8 divisors (see below), whose sum is σ = 94045896. Its totient is φ = 92234112.

The previous prime is 93138181. The next prime is 93138271. The reversal of 93138217 is 71283139.

It can be written as a sum of positive squares in 4 ways, for example, as 2298256 + 90839961 = 1516^2 + 9531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 93138217 - 2¹⁹ = 92613929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93138317) 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 in 7 ways as a sum of consecutive naturals, for example, 108763 + ... + 109615.

It is an arithmetic number, because the mean of its divisors is an integer number (11755737).

Almost surely, 2^93138217 is an apocalyptic number.

It is an amenable number.

93138217 is a deficient number, since it is larger than the sum of its proper divisors (907679).

93138217 is a wasteful number, since it uses less digits than its factorization.

93138217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787.

The product of its digits is 9072, while the sum is 34.

The square root of 93138217 is about 9650.8143179734. The cubic root of 93138217 is about 453.2898278007.

The spelling of 93138217 in words is "ninety-three million, one hundred thirty-eight thousand, two hundred seventeen".