89693664 has 48 divisors (see below), whose sum is σ = 243048960. Its totient is φ = 28932480.

The previous prime is 89693663. The next prime is 89693671. The reversal of 89693664 is 46639698.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89693663) 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, 12094 + ... + 18045.

It is an arithmetic number, because the mean of its divisors is an integer number (5063520).

Almost surely, 2^89693664 is an apocalyptic number.

It is an amenable number.

89693664 is an abundant number, since it is smaller than the sum of its proper divisors (153355296).

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

89693664 is a wasteful number, since it uses less digits than its factorization.

89693664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30183 (or 30175 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 51.

The square root of 89693664 is about 9470.6738936572. The cubic root of 89693664 is about 447.6314464622.

The spelling of 89693664 in words is "eighty-nine million, six hundred ninety-three thousand, six hundred sixty-four".