93393889 has 4 divisors (see below), whose sum is σ = 93445524. Its totient is φ = 93342256.

The previous prime is 93393887. The next prime is 93393907. The reversal of 93393889 is 98839339.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98839339 = 367 ⋅269317.

It can be written as a sum of positive squares in 2 ways, for example, as 22278400 + 71115489 = 4720^2 + 8433^2 .

It is a cyclic number.

It is not a de Polignac number, because 93393889 - 2¹ = 93393887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93393887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23002 + ... + 26755.

It is an arithmetic number, because the mean of its divisors is an integer number (23361381).

Almost surely, 2^93393889 is an apocalyptic number.

It is an amenable number.

93393889 is a deficient number, since it is larger than the sum of its proper divisors (51635).

93393889 is a wasteful number, since it uses less digits than its factorization.

93393889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51634.

The product of its digits is 1259712, while the sum is 52.

The square root of 93393889 is about 9664.0513761052. The cubic root of 93393889 is about 453.7042213629.

The spelling of 93393889 in words is "ninety-three million, three hundred ninety-three thousand, eight hundred eighty-nine".