89845247 has 8 divisors (see below), whose sum is σ = 91943616. Its totient is φ = 87754752.

The previous prime is 89845237. The next prime is 89845267. The reversal of 89845247 is 74254898.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89845247 - 2¹⁸ = 89583103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89845237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25463 + ... + 28775.

It is an arithmetic number, because the mean of its divisors is an integer number (11492952).

Almost surely, 2^89845247 is an apocalyptic number.

89845247 is a deficient number, since it is larger than the sum of its proper divisors (2098369).

89845247 is a wasteful number, since it uses less digits than its factorization.

89845247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937.

The product of its digits is 645120, while the sum is 47.

The square root of 89845247 is about 9478.6732721410. The cubic root of 89845247 is about 447.8834714331.

The spelling of 89845247 in words is "eighty-nine million, eight hundred forty-five thousand, two hundred forty-seven".