89535381 has 16 divisors (see below), whose sum is σ = 129583104. Its totient is φ = 54661824.

The previous prime is 89535377. The next prime is 89535401. The reversal of 89535381 is 18353598.

It is not a de Polignac number, because 89535381 - 2² = 89535377 is a prime.

It is a super-2 number, since 2×89535381² = 16033168901630322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89535181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4086 + ... + 13991.

It is an arithmetic number, because the mean of its divisors is an integer number (8098944).

Almost surely, 2^89535381 is an apocalyptic number.

It is an amenable number.

89535381 is a deficient number, since it is larger than the sum of its proper divisors (40047723).

89535381 is a wasteful number, since it uses less digits than its factorization.

89535381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18220.

The product of its digits is 129600, while the sum is 42.

The square root of 89535381 is about 9462.3137233977. The cubic root of 89535381 is about 447.3679786990.

The spelling of 89535381 in words is "eighty-nine million, five hundred thirty-five thousand, three hundred eighty-one".