94478909 has 6 divisors (see below), whose sum is σ = 109904094. Its totient is φ = 80981880.

The previous prime is 94478893. The next prime is 94478927. The reversal of 94478909 is 90987449.

It can be written as a sum of positive squares in only one way, i.e., 84732025 + 9746884 = 9205^2 + 3122^2 .

It is not a de Polignac number, because 94478909 - 2⁴ = 94478893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94478939) 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 5 ways as a sum of consecutive naturals, for example, 964022 + ... + 964119.

It is an arithmetic number, because the mean of its divisors is an integer number (18317349).

Almost surely, 2^94478909 is an apocalyptic number.

It is an amenable number.

94478909 is a deficient number, since it is larger than the sum of its proper divisors (15425185).

94478909 is a wasteful number, since it uses less digits than its factorization.

94478909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928155 (or 1928148 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 94478909 is about 9720.0261830923. The cubic root of 94478909 is about 455.4544571765.

The spelling of 94478909 in words is "ninety-four million, four hundred seventy-eight thousand, nine hundred nine".