94528409 has 2 divisors, whose sum is σ = 94528410. Its totient is φ = 94528408.

The previous prime is 94528391. The next prime is 94528417. The reversal of 94528409 is 90482549.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51337225 + 43191184 = 7165^2 + 6572^2 .

It is an emirp because it is prime and its reverse (90482549) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94528409 is a prime.

It is not a weakly prime, because it can be changed into another prime (94528009) 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, 47264204 + 47264205.

It is an arithmetic number, because the mean of its divisors is an integer number (47264205).

Almost surely, 2^94528409 is an apocalyptic number.

It is an amenable number.

94528409 is a deficient number, since it is larger than the sum of its proper divisors (1).

94528409 is an equidigital number, since it uses as much as digits as its factorization.

94528409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 94528409 is about 9722.5721390998. The cubic root of 94528409 is about 455.5339848358.

The spelling of 94528409 in words is "ninety-four million, five hundred twenty-eight thousand, four hundred nine".