93897913 has 8 divisors (see below), whose sum is σ = 96727176. Its totient is φ = 91094400.

The previous prime is 93897907. The next prime is 93897949. The reversal of 93897913 is 31979839.

It can be written as a sum of positive squares in 4 ways, for example, as 29127609 + 64770304 = 5397^2 + 8048^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93897913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93897113) 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, 1095 + ... + 13747.

It is an arithmetic number, because the mean of its divisors is an integer number (12090897).

Almost surely, 2^93897913 is an apocalyptic number.

It is an amenable number.

93897913 is a deficient number, since it is larger than the sum of its proper divisors (2829263).

93897913 is a wasteful number, since it uses less digits than its factorization.

93897913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12875.

The product of its digits is 367416, while the sum is 49.

The square root of 93897913 is about 9690.0935496000. The cubic root of 93897913 is about 454.5189344564.

The spelling of 93897913 in words is "ninety-three million, eight hundred ninety-seven thousand, nine hundred thirteen".