89747217 has 32 divisors (see below), whose sum is σ = 153190400. Its totient is φ = 50866704.

The previous prime is 89747197. The next prime is 89747269. The reversal of 89747217 is 71274798.

It is a happy number.

It is not a de Polignac number, because 89747217 - 2¹⁸ = 89485073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89747297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22134 + ... + 25872.

It is an arithmetic number, because the mean of its divisors is an integer number (4787200).

Almost surely, 2^89747217 is an apocalyptic number.

It is an amenable number.

89747217 is a deficient number, since it is larger than the sum of its proper divisors (63443183).

89747217 is a wasteful number, since it uses less digits than its factorization.

89747217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882 (or 3876 counting only the distinct ones).

The product of its digits is 197568, while the sum is 45.

The square root of 89747217 is about 9473.5007784873. The cubic root of 89747217 is about 447.7205171814.

The spelling of 89747217 in words is "eighty-nine million, seven hundred forty-seven thousand, two hundred seventeen".