89554491 has 24 divisors (see below), whose sum is σ = 144471600. Its totient is φ = 55108512.

The previous prime is 89554469. The next prime is 89554511. The reversal of 89554491 is 19445598.

89554491 is a `hidden beast` number, since 8 + 9 + 554 + 4 + 91 = 666.

It is not a de Polignac number, because 89554491 - 2¹³ = 89546299 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (89554891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11016 + ... + 17333.

It is an arithmetic number, because the mean of its divisors is an integer number (6019650).

Almost surely, 2^89554491 is an apocalyptic number.

89554491 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

89554491 is a deficient number, since it is larger than the sum of its proper divisors (54917109).

89554491 is a wasteful number, since it uses less digits than its factorization.

89554491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28377 (or 28365 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 89554491 is about 9463.3234648299. The cubic root of 89554491 is about 447.3998044563.

The spelling of 89554491 in words is "eighty-nine million, five hundred fifty-four thousand, four hundred ninety-one".