89542278 has 48 divisors (see below), whose sum is σ = 227144736. Its totient is φ = 24958080.

The previous prime is 89542273. The next prime is 89542279. The reversal of 89542278 is 87224598.

89542278 is a `hidden beast` number, since 89 + 542 + 27 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89542273) 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 23 ways as a sum of consecutive naturals, for example, 3501 + ... + 13832.

It is an arithmetic number, because the mean of its divisors is an integer number (4732182).

Almost surely, 2^89542278 is an apocalyptic number.

89542278 is an abundant number, since it is smaller than the sum of its proper divisors (137602458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89542278 is a wasteful number, since it uses less digits than its factorization.

89542278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17389 (or 17386 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 89542278 is about 9462.6781621273. The cubic root of 89542278 is about 447.3794654718.

The spelling of 89542278 in words is "eighty-nine million, five hundred forty-two thousand, two hundred seventy-eight".