89855385 has 16 divisors (see below), whose sum is σ = 145502784. Its totient is φ = 47344832.

The previous prime is 89855371. The next prime is 89855393. The reversal of 89855385 is 58355898.

It is a cyclic number.

It is not a de Polignac number, because 89855385 - 2¹⁰ = 89854361 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34842 + ... + 37331.

It is an arithmetic number, because the mean of its divisors is an integer number (9093924).

Almost surely, 2^89855385 is an apocalyptic number.

It is an amenable number.

89855385 is a deficient number, since it is larger than the sum of its proper divisors (55647399).

89855385 is a wasteful number, since it uses less digits than its factorization.

89855385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72264.

The product of its digits is 1728000, while the sum is 51.

The square root of 89855385 is about 9479.2080365398. The cubic root of 89855385 is about 447.9003169611.

The spelling of 89855385 in words is "eighty-nine million, eight hundred fifty-five thousand, three hundred eighty-five".