89540816 has 10 divisors (see below), whose sum is σ = 173485362. Its totient is φ = 44770400.

The previous prime is 89540809. The next prime is 89540873. The reversal of 89540816 is 61804598.

It can be written as a sum of positive squares in only one way, i.e., 50353216 + 39187600 = 7096^2 + 6260^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2798135 + ... + 2798166.

Almost surely, 2^89540816 is an apocalyptic number.

It is an amenable number.

89540816 is a deficient number, since it is larger than the sum of its proper divisors (83944546).

89540816 is a wasteful number, since it uses less digits than its factorization.

89540816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5596309 (or 5596303 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 89540816 is about 9462.6009109547. The cubic root of 89540816 is about 447.3770305983.

The spelling of 89540816 in words is "eighty-nine million, five hundred forty thousand, eight hundred sixteen".