89318477 has 4 divisors (see below), whose sum is σ = 90109020. Its totient is φ = 88527936.

The previous prime is 89318443. The next prime is 89318513. The reversal of 89318477 is 77481398.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12773476 + 76545001 = 3574^2 + 8749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89318477 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 (89318417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395102 + ... + 395327.

It is an arithmetic number, because the mean of its divisors is an integer number (22527255).

Almost surely, 2^89318477 is an apocalyptic number.

It is an amenable number.

89318477 is a deficient number, since it is larger than the sum of its proper divisors (790543).

89318477 is a wasteful number, since it uses less digits than its factorization.

89318477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790542.

The product of its digits is 338688, while the sum is 47.

The square root of 89318477 is about 9450.8453061089. The cubic root of 89318477 is about 447.0064293810.

The spelling of 89318477 in words is "eighty-nine million, three hundred eighteen thousand, four hundred seventy-seven".