93691644 has 12 divisors (see below), whose sum is σ = 218613864. Its totient is φ = 31230544.

The previous prime is 93691613. The next prime is 93691681. The reversal of 93691644 is 44619639.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 93691596 and 93691605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903807 + ... + 3903830.

It is an arithmetic number, because the mean of its divisors is an integer number (18217822).

Almost surely, 2^93691644 is an apocalyptic number.

It is an amenable number.

93691644 is an abundant number, since it is smaller than the sum of its proper divisors (124922220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

93691644 is a wasteful number, since it uses less digits than its factorization.

93691644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807644 (or 7807642 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 93691644 is about 9679.4444055431. Note that the first 4 decimals coincide. The cubic root of 93691644 is about 454.1858709645.

The spelling of 93691644 in words is "ninety-three million, six hundred ninety-one thousand, six hundred forty-four".