89285661 has 12 divisors (see below), whose sum is σ = 129088960. Its totient is φ = 59468040.

The previous prime is 89285657. The next prime is 89285663. The reversal of 89285661 is 16658298.

89285661 is a `hidden beast` number, since 89 + 2 + 8 + 566 + 1 = 666.

It is not a de Polignac number, because 89285661 - 2² = 89285657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89285663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7050 + ... + 15108.

Almost surely, 2^89285661 is an apocalyptic number.

It is an amenable number.

89285661 is a deficient number, since it is larger than the sum of its proper divisors (39803299).

89285661 is a wasteful number, since it uses less digits than its factorization.

89285661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9296 (or 9293 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 89285661 is about 9449.1090056153. The cubic root of 89285661 is about 446.9516786347.

The spelling of 89285661 in words is "eighty-nine million, two hundred eighty-five thousand, six hundred sixty-one".