89387855 has 4 divisors (see below), whose sum is σ = 107265432. Its totient is φ = 71510280.

The previous prime is 89387827. The next prime is 89387861. The reversal of 89387855 is 55878398.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 89387855 - 2²⁴ = 72610639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89387797 and 89387806.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8938781 + ... + 8938790.

It is an arithmetic number, because the mean of its divisors is an integer number (26816358).

Almost surely, 2^89387855 is an apocalyptic number.

89387855 is a deficient number, since it is larger than the sum of its proper divisors (17877577).

89387855 is a wasteful number, since it uses less digits than its factorization.

89387855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17877576.

The product of its digits is 2419200, while the sum is 53.

The square root of 89387855 is about 9454.5150589546. The cubic root of 89387855 is about 447.1221366305.

The spelling of 89387855 in words is "eighty-nine million, three hundred eighty-seven thousand, eight hundred fifty-five".