89477405 has 4 divisors (see below), whose sum is σ = 107372892. Its totient is φ = 71581920.

The previous prime is 89477387. The next prime is 89477417. The reversal of 89477405 is 50477498.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50477498 = 2 ⋅25238749.

It can be written as a sum of positive squares in 2 ways, for example, as 37478884 + 51998521 = 6122^2 + 7211^2 .

It is not a de Polignac number, because 89477405 - 2⁸ = 89477149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 8947736 + ... + 8947745.

It is an arithmetic number, because the mean of its divisors is an integer number (26843223).

Almost surely, 2^89477405 is an apocalyptic number.

It is an amenable number.

89477405 is a deficient number, since it is larger than the sum of its proper divisors (17895487).

89477405 is a wasteful number, since it uses less digits than its factorization.

89477405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17895486.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 89477405 is about 9459.2497059756. The cubic root of 89477405 is about 447.2713978620.

The spelling of 89477405 in words is "eighty-nine million, four hundred seventy-seven thousand, four hundred five".