89788847 has 4 divisors (see below), whose sum is σ = 91699296. Its totient is φ = 87878400.

The previous prime is 89788817. The next prime is 89788871. The reversal of 89788847 is 74888798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74888798 = 2 ⋅37444399.

It is a cyclic number.

It is not a de Polignac number, because 89788847 - 2¹⁶ = 89723311 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 (89788817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955154 + ... + 955247.

It is an arithmetic number, because the mean of its divisors is an integer number (22924824).

Almost surely, 2^89788847 is an apocalyptic number.

89788847 is a deficient number, since it is larger than the sum of its proper divisors (1910449).

89788847 is a wasteful number, since it uses less digits than its factorization.

89788847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910448.

The product of its digits is 7225344, while the sum is 59.

The square root of 89788847 is about 9475.6977051825. The cubic root of 89788847 is about 447.7897327872.

The spelling of 89788847 in words is "eighty-nine million, seven hundred eighty-eight thousand, eight hundred forty-seven".