89948477 has 2 divisors, whose sum is σ = 89948478. Its totient is φ = 89948476.

The previous prime is 89948471. The next prime is 89948491. The reversal of 89948477 is 77484998.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69572281 + 20376196 = 8341^2 + 4514^2 .

It is a cyclic number.

It is not a de Polignac number, because 89948477 - 2⁴ = 89948461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89948471) 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 as a sum of consecutive naturals, namely, 44974238 + 44974239.

It is an arithmetic number, because the mean of its divisors is an integer number (44974239).

Almost surely, 2^89948477 is an apocalyptic number.

It is an amenable number.

89948477 is a deficient number, since it is larger than the sum of its proper divisors (1).

89948477 is an equidigital number, since it uses as much as digits as its factorization.

89948477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 56.

The square root of 89948477 is about 9484.1170912215. The cubic root of 89948477 is about 448.0549415107.

It can be divided in two parts, 8994 and 8477, that added together give a palindrome (17471).

The spelling of 89948477 in words is "eighty-nine million, nine hundred forty-eight thousand, four hundred seventy-seven".