94117409 has 2 divisors, whose sum is σ = 94117410. Its totient is φ = 94117408.

The previous prime is 94117399. The next prime is 94117417. The reversal of 94117409 is 90471149.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72726784 + 21390625 = 8528^2 + 4625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94117409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (94117459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47058704 + 47058705.

It is an arithmetic number, because the mean of its divisors is an integer number (47058705).

Almost surely, 2^94117409 is an apocalyptic number.

It is an amenable number.

94117409 is a deficient number, since it is larger than the sum of its proper divisors (1).

94117409 is an equidigital number, since it uses as much as digits as its factorization.

94117409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 94117409 is about 9701.4127321746. The cubic root of 94117409 is about 454.8728203899.

The spelling of 94117409 in words is "ninety-four million, one hundred seventeen thousand, four hundred nine".