93643081 has 4 divisors (see below), whose sum is σ = 107020672. Its totient is φ = 80265492.

The previous prime is 93643037. The next prime is 93643087. The reversal of 93643081 is 18034639.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 93643081 - 2¹⁹ = 93118793 is a prime.

It is a super-2 number, since 2×93643081² = 17538053238345122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93643087) 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, 6688785 + ... + 6688798.

It is an arithmetic number, because the mean of its divisors is an integer number (26755168).

Almost surely, 2^93643081 is an apocalyptic number.

It is an amenable number.

93643081 is a deficient number, since it is larger than the sum of its proper divisors (13377591).

93643081 is a wasteful number, since it uses less digits than its factorization.

93643081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377590.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 93643081 is about 9676.9355169909. The cubic root of 93643081 is about 454.1073849884.

The spelling of 93643081 in words is "ninety-three million, six hundred forty-three thousand, eighty-one".