89688381 has 8 divisors (see below), whose sum is σ = 120112224. Its totient is φ = 59528400.

The previous prime is 89688373. The next prime is 89688397. The reversal of 89688381 is 18388698.

It is a happy number.

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

It is not a de Polignac number, because 89688381 - 2³ = 89688373 is a prime.

It is a super-2 number, since 2×89688381² = 16088011372802322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89688371) 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, 65170 + ... + 66531.

It is an arithmetic number, because the mean of its divisors is an integer number (15014028).

Almost surely, 2^89688381 is an apocalyptic number.

It is an amenable number.

89688381 is a deficient number, since it is larger than the sum of its proper divisors (30423843).

89688381 is a wasteful number, since it uses less digits than its factorization.

89688381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131931.

The product of its digits is 663552, while the sum is 51.

The square root of 89688381 is about 9470.3949759237. The cubic root of 89688381 is about 447.6226577204.

The spelling of 89688381 in words is "eighty-nine million, six hundred eighty-eight thousand, three hundred eighty-one".